Mayangsari, W., & Prasetyo, A. B. (2016). Proses Reduksi Selektif Bijih Nikel Limonit Menggunakan Zat Aditif CaSO4 [Selective Reduction Process of Nickel Limonite With Adictive CaSO4]. Jurnal Metalurgi, 31(1), 7–18. https://doi.org/10.14203/metalurgi.v31i1.86