“Biodiesel Production from Kapok Seed Oil (Ceiba Pentandra) Through the Transesterification Process by Using CaO As Catalyst”. Global Journals of Research in Engineering 12, no. C2 (May 15, 2012): 7–12. Accessed June 6, 2026. https://testing.engineeringresearch.org/index.php/GJRE/article/view/314.