Steynberg, Hendrik, and Pieter J. Conradie. “DIE GEBRUIK VAN SIMULASIE AS DEELVAN ’N BESLUITNEMINGSONDERSTEUNINGSHULPMIDDEL VIR ONDERGRONDSE STEENKOOLMYNBOU”. The South African Journal of Industrial Engineering 8, no. 2 (January 15, 2012). Accessed November 24, 2024. http://sajie.journals.ac.za/pub/article/view/395.