Ramdhani DA, Wega Trisunaryanti, Triyono. Study of green and sustainable heterogeneous catalyst produced from Javanese Moringa oleifera leaf ash for the transesterification of Calophyllum inophyllum seed oil. CST [Internet]. 2023Dec.31 [cited 2025Apr.2];8(2):124-33. Available from: https://cst.kipmi.or.id/journal/article/view/1202