Ayu D, Aulyana R, Astuti EW, Kusmiyati K, Hidayati N. Catalytic Transesterification of Used Cooking Oil to Biodiesel: Effect of Oil-Methanol Molar Ratio and Reaction Time. AE [Internet]. 2019 Oct. 15 [cited 2026 Sep. 30];2(3):73-7. Available from: https://coba.unimma.ac.id/AutomotiveExperiences/article/view/2991