wai yan cheah, siti dina razman pahri.  (2025).  circular economy for palm oil industry: current & future perspectives.  - palm oil economic review & outlook seminar 2025.  . 

yong shen ooi, norefrina shafinaz md nor, wai yan cheah.  (2025).  systematic literature review on the risk perception of zoonotic disease among plantation and farm workers.  - international conference on earth sciences and environment (icemen2025).  . 

siti dina razman pahri, adibi rahiman, rosniza aznie che rose, cheah wai yan, haslawati baharuddin.  (2024).  enhancing fishermen social well-being in the aquaculture sector.  - .  1-25. 

wai yan cheah, nazlina haiza mohd yasin, siti nabila ahmad nazari, siti dina razman pahri, hor kok luen.  (2024).  aplikasi mikroalga-bakteria untuk rawatan efluen minyak sawit dan penghasilan biomas.  - persidangan kebangsaan pekebun kecil 2024.  . 

wai yan cheah.  (2024).  the climate change challenge, solutions and ways forward for palm oil industry.  - isee-awpc & ises-ac joint conference 2024.  . 

cheah wai yan;azhar bin ahmad;jalaluddin bin abdul malek;azmi bin aziz;mimi hanida binti abdul mutalib;ngan sue lin;siti dina bt razman pahri.  (2023).  major challenges facing the palm oil industry in malaysia: the road ahead towards sustainability.  - .  . 

wai yan cheah, er ah.choy. siti dina razman pahri.  (2022).  pengkomposan vermi dalam industri minyak sawit.  - persidangan pekebun kecil sawit 2022.  211-214. 

siti dina razman pahri, er ah.choy, wai yan cheah.  (2022).  peranan pemikiran kitar hayat dalam pengurusan mamsan industri minyak sawit.  - persidangan pekebun kecil sawit 2022.  221-224. 

wai yan cheah, er a.c..  (2022).  isolation and screening of detergent-degrading microbes from detergent wastewater.  - the 6th postgraduate colloquium for environmental research 2022.  171-172.