Kurniawan A, Ibrahim E, Toha T, Wahyudi Putra R. Planning of Sharing Wall At Iup Boundaries As A Strategy For Coal Conservation And Compliance With Mining Regulations. IJSE [Internet]. 2025 Oct. 27 [cited 2025 Oct. 27];5(4):77-82. Available from: https://ijsenet.com/index.php/IJSE/article/view/244