“PERENCANAAN TEKNIS OPERASI PRODUKSI BIJIH TIMAH DI BLOK 3 TAMBANG BESAR 2.1 MITRA PT TIMAH (PERSERO) TBK: Technical Planning for The Operation of Tin Ore Production at Block 3 Tambang Besar2.1 Partner of PT Timah (Persero) Tbk”. MINERAL, vol. 2, no. 1, Jan. 2020, pp. 1-7, https://doi.org/10.33019/mineral.v2i1.1540.