EVALUATION OF THE IMPACT OF BLASTING ACTIVITIES VERTICAL BENCHING OF GROUND SUPPORT PT. FREEPORT INDONESIA: EVALUASI DAMPAK KEGIATAN PELEDAKAN VERTICAL BENCHING TERHADAP GROUND SUPPORT PT. FREEPORT INDONESIA. (2023). JISTECH: Journal of Information Science and Technology, 6(1). http://jistech.unipa.ac.id/index.php/istech/article/view/150