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Analisis Lingkungan Pengendapan Batubara PT. Marunda Graha Mineral Kabupaten Murung Raya Mineral, Kalimantan Tengah. JTK [Internet]. 2020Apr.28 [cited 2024Nov.30];5(2):37-46. Available from: https://online-journal.unja.ac.id/jtk/article/view/8210