Elma M, Suhendra SA, Wahyuddin W, Saputri W, Utami SAA. Optimum Ratio Between Waste Cooking Oil and Coconut Oilas Raw Material for Biodiesel Production. Int. J. Adv. Sci. Eng. Inf. Technol. [Internet]. 2017 Aug. 31 [cited 2024 Jul. 3];7(4):1227-33. Available from: https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/2432