nur hidayah deeleanie, nur imanina farhana japar, azizul hakim lahuri, syawal mohd yusof, siti sarahah sulhadi, ainil hafiza abdul aziz, salma samidin, mohd azlan kassim and wan nor roslam wan isahak.  (2025).  removal of urea by adsorption using solid sorbent from photovoltaic industry waste.  - malaysian journal of chemistry.  126 - 143. 

syawal mohd yusof, rohazlin binti mohamad, siti zaida md yasir, noorsuhada binti abd rahman, muhammad imran bin abdul latif.  (2024).  rekod pengkelasan awal sisa kimia (re-pask).  - international laboratory innovation seminar.  . 

teh lee peng, syawal mohd yusof, rizafizah othaman, herma dina setiabudi.  (2023).  cao/dendritic fibrous nanosilica for co2 capture: optimizing properties via tailored loading methods.  - 35th international conference of analytical sciences (skam35).  1. 

s. m. yusof, l. p. teh.  (2021).  bifunctional materials for co2 adsorption: short review.  - journal of chemical engineering and industrial biotechnology.  15-19.