Muhammad Bagus Adi Wicaksono, I. Gusti Ayu Ketut Rachmi Handayani, Lego Karjoko. Regional Government Supervision on Coal Mine Voids in East Kalimantan Province. IJAST [Internet]. 2020Jun.6 [cited 2024May6];29(04):7168 -. Available from: http://sersc.org/journals/index.php/IJAST/article/view/28125