Qadariyah, Lailatul, Donny Satria Bhuana, Raka Selaksa, Ja’far As Shodiq, and Mahfud Mahfud. 2018. “Biodiesel Production From Calophyllum Inophyllum Using Base Lewis Catalyst”. ASEAN Journal of Chemical Engineering 18 (1), 53-59. https://journal.ugm.ac.id/v3/AJChE/article/view/9014.