Siburian, Robert. “PERTAMBANGAN BATU BARA: ANTARA MENDULANG RUPIAH DAN MENEBAR POTENSI KONFLIK”. Masyarakat Indonesia 38, no. 1 (June 19, 2012): 69–92. Accessed February 6, 2026. https://ejournal.brin.go.id/jmi/article/view/8289.