Asri, N.P., Budikarjono, K., Suprapto, S. and Roesyadi, A. 2015. Kinetics of Palm Oil Transesterification Using Double Promoted Catalyst CaO/KI/γ- Al2O3. Journal of Engineering and Technological Sciences. 47, 4 (Sep. 2015), 353-363. DOI:https://doi.org/10.5614/j.eng.technol.sci.2015.47.4.1.