OPTIMALISASI PERENCANAAN PRODUKSI BULAN MARET 2018 MENGGUNAKAN METODE TAMBANG SEMPROT DI TAMBANG BESAR 4.1 NUDUR BENCAH KABUPATEN BANGKA SELATAN PT TIMAH TBK. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE, [S. l.], v. 2, 2018. DOI: 10.33019/snppm.v2i0.609. Disponível em: https://journal.ubb.ac.id/index.php/snppm/article/view/609. Acesso em: 23 may. 2026.