IDENTIFIKASI MINERAL ALTERASI MENGGUNAKAN CITRA LANDSAT 9 (STUDI KASUS: KECAMATAN BONJOL, SUMATRA BARAT). SNPPM [Internet]. 2025 Dec. 29 [cited 2026 Aug. 3];9:122-9. Available from: https://www.journal.ubb.ac.id/index.php/snppm/article/view/7354