“Separation and Purification of Triglyceride from Nyamplung (Calophyllum Inophyllum) Seed Oil As Biodiesel Feedstock by Using Continuous Countercurrent Extraction”. Malaysian Journal of Fundamental and Applied Sciences 16, no. 1 (February 2, 2020): 18–22. Accessed September 7, 2026. https://mjfas.utm.my/index.php/mjfas/article/view/1439.