Rianto, D., D. S. Oetomo, and R. F. Ramdhan. “Feasibility Analysis of Smelter Grade Alumina (SGA) Project Development at PT. X”. SAINTEKS : Jurnal Sain Dan Teknik, vol. 5, no. 2, Sept. 2023, pp. 246-58, doi:10.37577/sainteks.v5i2.598.