Gumelar, M.D. et al. 2024. An Enhanced Nickel Recovery from Mixed Hydroxide Precipitate Through Selective Leaching with KMnO4 Oxidant . Jurnal Sains Materi Indonesia. 26, 1 (Aug. 2024), 35–44. DOI:https://doi.org/10.55981/jsmi.2024.3136.