Items where Author is "Putra, Gerhana Prasetya"
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Rahmad, Basuki and Raharjo, Sugeng and EDIYANTO, Ediyanto and Putra, Gerhana Prasetya (2020) Sedimentasi Batubara dan Karakteristik Mikroskopis Sulfur Batubara Daerah Sangatta, Kalimantan Timur. Institut Teknologi Nasional Yogyakarta.