Widiyaningsih, Indah. “Penentuan Current Recovery Factor Dan Cadangan Sisa Sumur “Alpha” Pada Lapisan “A” Dan Lapisan ‘B’”. Jurnal Offshore: Oil, Production Facilities and Renewable Energy 3, no. 2 (December 31, 2019). Accessed November 5, 2024. https://ejournal.up45.ac.id/index.php/Jurnal_OFFSHORE/article/view/591.