Mahardhika, Raditya, Hartono, and Inmarlinianto. 2022. “TECHNICAL DESIGN OF MINE DRAINAGE SYSTEM IN LIMESTONE MINING AT UP. PARNO, KARANGASEM VILLAGE, PONJONG DISTRICT, GUNUNGKIDUL DISTRICT, REGION YOGYAKARTA SPECIAL: RANCANGAN TEKNIS SISTEM PENYALIRAN TAMBANG PADA PENAMBANGAN BATUGAMPING DI UP. PARNO, DESA KARANGASEM, KECAMATAN PONJONG, KABUPATEN GUNUNGKIDUL, DAERAH ISTIMEWA YOGYAKARTA”. INTAN Jurnal Penelitian Tambang 5 (2):35-42. https://doi.org/10.56139/intan.v5i2.148.