Hamid, Abdul, Muhammad Badrus Syafa’, Tri Esti Purbaningtias, Zeni Rahmawati, Misbakhul Fatah, Tri Wahyuni, Ike Dayi Febriana, Mohammad Abdullah, and Faizatur Rohmah. “Biodiesel Synthesis With Different Feedstock Oils: Free Fatty Acid Analysis and Fuel Properties Characterization”. Indonesian Journal of Chemical Analysis (IJCA) 9, no. 1 (March 31, 2026): 13–26. Accessed March 31, 2026. https://journal.uii.ac.id/IJCA/article/view/46344.