Ulum, Reza Miftahul, et al. “THE PRODUCT CHARACTERISTICS OF TREATED-FERRONICKEL SLAG PRODUCED BY ALKALI FUSION AND CARBOTHERMIC PROCESS”. Jurnal Metalurgi, vol. 36, no. 1, Apr. 2021, pp. 1-6, doi:10.14203/metalurgi.v36i1.577.