Idarwati I, Maulia D. Neogene Coal Characteristics and Depositional Environments in the Kikim Area of South Sumatra Basin; Insights from logging, proximate test, sulfur test and electrofacies. BSED [Internet]. 2024 Sep. 15 [cited 2026 Nov. 12];50(1):75-92. Available from: https://journal.iagi.or.id/index.php/FOSI/article/view/460