Norhafiza Mohd Khazaai, Siti, Nur Farah Wahida Abdul Wahid Baki, Gaanty Pragas Maniam, and Mohd Hasbi Ab. Rahim. 2018. “Fatty Acid Methyl Esters Production from Waste Catfish Fat (Pangasius Hypothalamus) Using Barnacle-Zno As A Catalyst”. International Journal of Engineering & Technology 7 (3.11): 228-31. https://doi.org/10.14419/ijet.v7i3.11.15968.