Buchori, L., Widayat, N. Ngadi, Hadiyanto, and N. Okvitarini. “Preparation of KI/KIO3/Methoxide Kaolin Catalyst and Performance Test of Catalysis in Biodiesel Production”. Science and Technology Indonesia, vol. 9, no. 2, Apr. 2024, pp. 359-70, doi:10.26554/sti.2024.9.2.359-370.