1.
Fachrezi MG. Feasibility Study for Investment Decision in Silica Sand Mining Through Comparative Analysis of New Machine Purchase, Machine Refurbishment, and Joint Operation. Jurnal Sosains [Internet]. 2025Dec.26 [cited 2026Jul.14];5(12):4222-35. Available from: http://sosains.greenvest.co.id/index.php/sosains/article/view/32606