“IDENTIFIKASI MINERAL ALTERASI MENGGUNAKAN CITRA LANDSAT 9 (STUDI KASUS: KECAMATAN BONJOL, SUMATRA BARAT)”. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE 9 (December 29, 2025): 122–129. Accessed April 13, 2026. https://www.journal.ubb.ac.id/index.php/snppm/article/view/7354.