“Perencanaan Sistem Pemompaan Pada Penambangan Timah Primer Shaft Lacat 4 Pt Menara Cipta Mulia Kelapa Kampit Belitung Timur: (Planning of Pumping System in Shaft Lacat 4 Primary Tin Mining at PT Menara Cipta Mulia Kelapa Kampit Belitung Timur”. MINERAL 6, no. 1 (April 1, 2021): 6–12. Accessed November 7, 2025. https://journal.ubb.ac.id/index.php/mineral/article/view/3079.