Aziz, M.A.A, S. Triwahyono, A.A. Jalil, H.A.A. Rapai, and A.E. Atabani. 2016. “Transesterification of Moringa Oleifera Oil to Biodiesel Using Potassium Flouride Loaded Eggshell As Catalyst”. Malaysian Journal of Catalysis 1 (1). https://doi.org/10.11113/mjcat.v1n1.16.