Anas, A. K., Mutiara, R., Musawwa, M. M. and Taftazani, A. (2022) “Influence of Mixing Time and Mass Ratio of Precursor on Preparation of Magnetic Biochar Derived from Cassava Peel (Manihot utilissima)”, EKSAKTA: Journal of Sciences and Data Analysis, 3(1), pp. 10–16. doi: 10.20885/EKSAKTA.vol3.iss1.art2.