Sahputra, Rachmat. “Identification of Radiometric and Mineragraphy Analysis of Uranium and Sulfide Mineral at BM-179 Kalan-West Kalimantan Uranium Ore”. American Scientific Research Journal for Engineering, Technology, and Sciences 14, no. 2 (November 6, 2015): 311–321. Accessed May 2, 2024. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/1062.