Mahardhika, R.; Hartono; Inmarlinianto. 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. Program Studi S1 Teknik Pertambangan Universitas Papua 2022, 5, 35-42.