Hanan Nugroho. “Coal As the National Energy Supplier Forward: What Are Policies to Be Prepared?”. Jurnal Perencanaan Pembangunan: The Indonesian Journal of Development Planning 1, no. 1 (April 10, 2017): 1–13. Accessed May 5, 2024. https://journal.bappenas.go.id/index.php/jpp/article/view/3.