dahlila putri dahnil, zaihosnita hood, afzan adam, mohd zulhakimi ab razak, ahmad ghadafi ismail.  (2021).  drip irrigation detection for power outage-prone areas with internet-of-things smart fertigation management system.  - international journal of advanced computer science and applications.  745-755. 

mohd afiq ismail, mohd zulhakimi ab razak, sulaiman wadi harun, abdul manaf hashim.  (2021).  reduction-controlled graphene oxide saturable absorbers and its effect on ultrashort er-doped fibre laser.  - iet optoelectronics.  1-8. 

saaidal r azzuhri, zh azizul, mr z'aba, r zakaria, mam salim, mza razak, is amiri.  (2020).  investigation of u-shaped microfiber temperature sensor using a combination of thermal expansion of a metal and reflectivity of a silver coated mirror.  - optik.  1-10. 

michelle lim sern mi, md shabiul islam, sawal hamid md ali, mohd zulhakimi ab razak, yeo kim heng, wong hin yong.  (2020).  sub-threshold start-up circuit with dynamic body-biasing for boost converters in thermoelectric energy harvesting.  - sadhana-academy proceedings in engineering sciences.  1-11. 

muhammad aizi mat salim, mohd zulhakimi ab razak, saaidal razalli azzuhri, mohd afiq ismail, fauzan ahmad, sulaiman wadi harun.  (2019).  generation of microsecond ytterbium-doped fiber laser pulses using bismuth telluride thin film as saturable absorber.  - sains malaysiana.  1289-1294. 

mohd zulhakimi abdul razak, mohd farhanulhakim mohd razip wee, muhamad ramdzan buyong, sawal hamid md ali, teh chin hoong, jumadi abdul sukor, ahmad ghadafi ismail.  (2019).  kesan sistematik modifikasi dielektrik dengan asid fosfonik alkil ekalapisan terhadap prestasi transistor filem nipis organik saluran-n.  - sains malaysiana.  1295-1300. 

muhammad aizi mat salim, saaidal razalli azzuhri, muhammad imran mustafa abdul khudus, mohd zulhakimi ab razak, nurhakim syafiq nasir, iraj sadegh amiri.  (2018).  generation of dual-wavelength ytterbium-doped fibre laser using a highly nonlinear fibre.  - laser physics.  . 

saaidal razalli azzuhri, iraj sadegh amiri, aiman syahirah zulkhairi, muhammad aizi mat salim, mohd zulhakimi ab razak, muhammad farris khyasudeen, harith ahmad, rozalina zakaria, preecha yupapin.  (2018).  application of graphene oxide based microfiber-knot resonator for relative humidity sensing.  - results in physics.  . 

muhammad aizi mat salim, harith ahmad, saaidal razalli azzuhri, mohd zulhakimi ab razak, sulaiman wadi harun.  (2017).  tunable wavelength generation in the 1-micron region incorporating a 16-channel arrayed waveguide grating.  - laser physics.  . 

h. ahmad1,s. i. ooi,, m. z. a. razak,, s. r. azzuhri, a. a. jasim, k. thambiratnam,, m. f. ismail, and m. a. ismail.  (2017).  investigation of ellipticity and pump power in a passively mode-locked fiber laser using the nonlinear polarization rotation technique.  - chinese optics letters.  . 

jahariah sampe, nor afidatul asni semsudin, farah fatin zulkifli, md. shabiul islam and mohd. zulhakimi ab. razak,.  (2017).  hybrid energy harvester based on radio frequency, thermal and vibration inputs for biomedical devices.  - asian journal of scientific research.  79-87. 

rabiatul adawiyah shaharuddin, saaidal razalli azzuhri, mohd afiq ismail, farhana athirah ahmad rashid, mohd zharif samion, mohd zulhakimi ab razak, harith ahmad.  (2017).  tunable q-switched ytterbium-doped fibre laser by using zinc oxide as saturable absorber.  - opto-electronics review.  . 

mohd. zulhakimi ab. razak, zatul saliza saleh, fauzan ahmad, carol livan anyi, sulaiman wadi harun, harith arof.  (2016).  high-power q-switched erbium-ytterbium codoped fiber laser using multiwalled carbon nanotubes saturable absorber.  - optical engineering.  1-6. 

harith ahmad, farhana athirah ahmad rashid, saaidal razalli azzuhri, muhammad aizi mat salim, rabiatul adawiyah shaharuddin, mohd afiq ismail, and mohd. zulhakimi ab. razak.  (2016).  the generation of passive dual wavelengths q-switched ydfl by mose2 film.  - laser physics letters.  .