naif h. al-hardan, nawal alghamdi, lim kar keng, jassim muhammad salman, muhammad azmi abdul hamid.  (2025).  the role of semiconducting metal oxide sensors in hydrogen detection and monitoring.  - international journal of hydrogen energy.  1 - 25. 

alaa omar balkhtb, naif h. al-hardan, muhammad azmi abdul hamid, lim kar keng, and azman jalar.  (2025).  optimizing heat treatment for enhanced ph sensing in gallium oxide nanorod arrays.  - journal of materials science: materials in electronics.  1 - 19. 

nor afian yusof, jamsari alias, norazila mat, maharam mamat, lim kar keng, zulkifli mohamad.  (2025).  comparison of eastern aesthetics and malay aesthetics: an epistemological framework.  - international journal of academic research in business and social sciences.  316 - 329. 

tria rizqi qurratuaini mohamad ridho, lim kar keng, nor afian yusof, nurul hanis aminuddin jafry, nor kaisah zainal, sarah mohamad yunus.  (2025).  a review on digital marketing strategies for promoting green fashion among youth.  - international journal of academic research in business and social sciences.  1313 - 1324. 

maharam mamat, nor afian yusof, lim kar keng, maisarah yaacob.  (2025).  animasi boboiboy episod “jagalah bumi”: mengurus sisa buangan pepejal menggunakan kaedah 3r.  - akademika.  41 - 59. 

tian zhao, shilin peng, jiangrong yu, jiayao chen, fuli luo, kar keng lim, hafiz hamsan, nurul syakirah nazri.  (2025).  study on the effect of different shapes of hkust-1 based cellulose battery separators on the performance of zinc batteries.  - journal of energy storage.  1 - 11. 

muhammad hannan sayuti, lim kar keng, aminudin basir @ ahmad, mashitoh yaacob, maharam mamat, nor afian yusof, normazidah che musa, muhammad hazim aflah abdullah.  (2025).  religion and environmental conservation: a scoping review with emphasis on islam.  - international journal of academic research in business and social sciences.  939 - 955. 

nurul syakirah nazri, ahmad fudholi, muslizainun mustapha, mohd fadhli shah khaidzir, muhamad hafiz hamsan, kar keng lim, afifuddin husairi hussain, ubaidah syafiq, amir azirul bin narulhizam, masita mohammad, nurul nazli rosli, kamaruzzaman sopian.  (2024).  bridging the gap: a comparative analysis of indoor and outdoor performance for photovoltaic-thermal-thermoelectric hybrid systems.  - case studies in thermal engineering.  1 - 20. 

h. abdullah, k. j. xian, k. c. ying, n. m. naim, m. akhtaruzzaman, d. d. berhanuddin, l. k. keng, m. rizwan, m. h. d. othman, m. f. ahmad, y. w. fen, and a. n. jannah.  (2024).  analysis of dye-sensitized solar cells based on zno and zno–ni photoanodes with various ni concentrations.  - applied solar energy.  61 - 471. 

naif h. al-hardan, muhammad azmi abdul hamid, mohd firdaus-raih, azman jalar, ain zafirah kamaruddin, lim kar keng, ensaf mohammed al-khalqi, naser m. ahmed.  (2024).  titanium dioxide ion-sensitive extended gate field effect transistor (isegfet): selective detection of potassium ions in artificial blood serum.  - journal of materials science: materials in electronics.  1-16. 

maharam mamat, nor afian yusof, lim kar keng, maisarah yaacob, daing zairi ma'arof, devendran ramachandran.  (2024).  boboiboy animation episode, care of the earth: managing solid waste with the 3r method.  - international journal of religion.  778-790. 

maharam mamat, maisarah yaacob, lim kar keng, nor afian yusof, daing zairi ma'arof, devendran ramachandran, muhammad hannan sayuti.  (2024).  enviromental education in children:3r practices in boboiboy animation.  - environmental and social management journal (revista de gestão social e ambiental).  1-21. 

m.h. hamsan, a.a. azli, s.b. aziz, n.a. shamsuri, m.f.z. kadir, n.s. nazri, l.k. keng, h.f.m. zaid, m.f. shukur..  (2024).  characterization of methylcellulose based composite polymer electrolytes reinforced with reduced-graphene oxide.  - materials science & engineering b.  11731. 

nor afian yusof, maharam mamat, lim kar keng, hamdzun haron, nazri muslim.  (2024).  leadership: rejabhad as an icon and the king of malaysian cartoonist.  - international journal of academic research in business and social sciences.  2862-2873. 

muhamad hafiz bin hamsan, na halim, nsn saaya, nurul syakirah nazri , nor fatin adlina mohd salleh, szn demon , na shamsuri, mfz kadir, mf shukur, lim kar keng, nurul hanis binti aminuddin jafry, azlan abdul rahim.  (2024).  pembangunan penyimpanan tenaga hijau daripada selulosa bakteria selulosa metil dan kanji kentang.  - jurnal teknologi.  1-8. 

nor afian yusof, jamsari alias, norazila mat, maharam mamat, lim kar keng, hamdzun haron. .  (2024).  exploring the impact of anime on muslim teenagers’ moral behaviour.  - international journal of academic research in business and social sciences .  861 - 873. 

wan zulkifli wan hassan, khalid khalfan muslem salim al-maamari, lim kar keng.  (2024).  comparative study of al-imam al-shafii and john dewey thoughts about the concept of education in islamic and western perspectives.  - international journal of religion.  2968 - 2977. 

n. a. azra, a. atiqah, h. fadhlina, m. a. bakar, a. jalar, r. a. ilyas, j. naveen, f. a. sabaruddin, k. k. lim, m. asrofi.  (2023).  oil-palm based nanocellulose reinforced thermoplastic polyurethane for plastic encapsulation of biomedical sensor devices: water absorption, thickness swelling and density properties.  - applied science and engineering progress.  1-9. 

tinialishel laie gostine tinggie, kim hua tan, nazri muslim, lim kar keng.  (2023).  peer scaffolding among primary esl learners writing task: learners behaviors and triggering factors.  - international journal of learning, teaching and educational research.  191-208. 

nor afian yusof, khairul anwar mastor, maharam mamat, lim kar keng, hamdzun haron, hanafi mohd tahir, rafuzan jaafar, khairudin baharum..  (2023).  the influence of anime as japanese popular culture among art and design students..  - nurture.  493-503. 

nor afian yusof, hamdzun haron, maharam mamat, lim kar keng.  (2023).  prophet muhammad (pbuh) cartoon controversy in late 2005: conflict of perspectives on ethical and moral values.  - international journal of academic research in business and social sciences.  1914-1925. 

ain zafirah kamaruddin, lim kar keng, muhammad azmi abdul hamid, naif h. al-hardan, huda abdullah & ensaf mohammed al-khalqi.  (2023).  the characteristic of ph-sensing of potentiometric on zinc oxide and aluminium-doped zinc oxide nanostructures.  - sains malaysiana.  3253-3246. 

nor afian yusof, maharam mamat, lim kar keng, hamdzun haron.  (2023).  the aesthetic design of malela kris.  - migration letters.  678-691. 

ensaf mohammed. al-khalqi, muhammad azmi abdul hamid, naif h. al-hardan, lim kar keng, azman jalar.  (2022).  magnesium-doped zno nanorod electrolyte insulator semiconductor (eis) sensor for detecting calcium ions.  - journal of materials science: materials in electronics.  1618-1630. 

ensaf mohammed alkhalqi, muhammad azmi abdul hamid, naif h. alhardan, lim kar keng, azman jalar.  (2022).  magnesium doped zno nanorod electrolyte-insulator-semiconductor (eis) sensor for detecting organic solvents..  - ieee sensors journal.  11783-11790. 

n.ismail, a.atiqah, a.jalar, m.a.bakar, r.a.a.rahim, a.g.ismail, a.a.hamzah, l.k.keng.  (2022).  a systematic literature review: the effects of surface roughness on the wettability and formation of intermetallic compound layers in lead-free solder joints.  - journal of manufacturing processes.  68-85. 

nor afian yusof, khairul anwar mastor, hamdzun haron, lim kar keng, jamsari alias, maharam mamat, ahmad rafizi salleh.  (2022).  the influence of anime on the moral value among arts and design students: a pilot study in uitm shah alam.  - international journal of academic research in business and social sciences.  1013-1033. 

naif h al-hardan, muhammed azmi abdul hamid, mohd firdaus - raih.  (2022).  aluminum modified zno nanoparticles synthesized through co- precipitation.  - jurnal teknologi.  11-16. 

ahmad firdhaus arham, muhammad adzran che mustapa, wan zulkifli wan hassan, puteh noraihan a. rahman, nasruddin yunos, nazri muslim, lim kar keng, jamsari alias, aminudin basir, zulkifli mohamad.  (2022).  dataset on young people intention towards covid19 booster vaccines in malaysia.  - journal of pharmaceutical negative results.  863-869. 

nor afian yusof, hamdzun haron, lim kar keng, maharam mamat.  (2022).  the philosophy of keris design in malay civilization.  - international journal of academic research in business and social sciences.  2401-2421. 

maharam mamat, nor afian yusof, lim kar keng, maisarah yaacob.  (2022).  haze in animation upin and ipin.  - international journal of academic research in business and social sciences.  1844-1860. 

naif h. al-hardan, muhammad azmi abdul hamid, mohd firdaus-raih, lim kar keng, ensaf mohammed al-khalqi, azman jalar.  (2021).  calcium ion-selective electrode based on the facile synthesis of cuo over cu wires.  - journal of materials science: materials in electronics.  1-12. 

ensaf mohammed. al-khalqi, muhammad azmi abdul hamid, roslinda shamsudin, naif h. al-hardan, lim kar keng, azman jalar.  (2021).  zinc oxide nanorods electrolyte insulator semiconductor sensors for enhanced 2-methoxythanol selectivity.  - ieee sensors journal.  6234-6240. 

naif h. al-hardan, muhammad azmi abdul hamid, lim kar keng, ensaf mohammed al-khalqi, azman jalar, wee siong chiu.  (2021).  low-cost fabrication of a ph sensor based on writing directly over parchment-type paper with pencil.  - journal of materials science: materials in electronics.  9431-9439. 

ensaf mohammed al-khalqi, muhammad azmi abdul hamid, naif h. al-hardan, lim kar keng.  (2021).  highly sensitive magnesium-doped zno nanorod ph sensors based on electrolyte-insulator-semiconductor (eis) sensors.  - sensors.  1-16.