Khairunissa, Dzakkiyyah Nur, and Taufik Faturohman. “Strategic Planning and Economic Valuation for Slope Optimization in PIT X PT ABC”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) 9, no. 1 (April 27, 2026): 10200-10216. Accessed August 27, 2026. https://e-journal.uac.ac.id/index.php/iijse/article/view/9748.