Gumelar, Muhammad Dikdik, Rahayu, Saputra, Agustanhakri, Husin, Andrameda, Taqwatomo, et al. “An Enhanced Nickel Recovery from Mixed Hydroxide Precipitate Through Selective Leaching With KMnO4 Oxidant ”. Jurnal Sains Materi Indonesia 26, no. 1 (August 6, 2024): 35–44. Accessed September 20, 2024. https://ejournal.brin.go.id/jsmi/article/view/3136.