Santi, Darma, Ahmad Muin, and Agnes Dyah Novitasari Lestari. “Determination of Major Cation and Anion Content in Coconut Fiber Ash Potentially Renewable Catalyst: Penentuan Kandungan Kation Dan Anion Mayor Dalam Abu Serabut Kelapa Berpotensi Katalis Renewable”. JISTECH: Journal of Information Science and Technology 6, no. 2 (January 22, 2023). Accessed December 22, 2024. https://jurnal.unipa.ac.id/index.php/istech/article/view/141.