“PERSEPSI, EKSTERNALITAS DAN PELUANG PENGEMBANGAN TAMBANG INKONVENSIONAL TANPA IZIN: STUDI KASUS DI KABUPATEN BANGKA SELATAN”. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE 3 (September 17, 2019): 258–262. Accessed September 2, 2026. https://www.journal.ubb.ac.id/index.php/snppm/article/view/1365.