Gumelar, M. D.; Rahayu; Saputra; Agustanhakri; Husin; Andrameda; Taqwatomo; Putra; Indrijarso; Saudi. An Enhanced Nickel Recovery from Mixed Hydroxide Precipitate Through Selective Leaching With KMnO4 Oxidant . j. sains materi indonesia 2024, 26, 35-44.