Rifandy A. Optimasi Void (Lubang Akhir Tambang) Pada Kegiatan Rencana Pascatambang Batubara di PT. Megaprima Persada Propinsi Kalimantan Timur: Void Optimization (Mining End Hole) in Coal Post Mining Plan Activities at PT. Megaprima Persada East Kalimantan Province. Media Teknik Lingkungan [Internet]. 2023Mar.2 [cited 2025Sep.18];8(1):09-16. Available from: https://ojs.umpr.ac.id/mitl/article/view/4650