STEYNBERG, H.; CONRADIE, P. J. DIE GEBRUIK VAN SIMULASIE AS DEELVAN ’N BESLUITNEMINGSONDERSTEUNINGSHULPMIDDEL VIR ONDERGRONDSE STEENKOOLMYNBOU. The South African Journal of Industrial Engineering, [S. l.], v. 8, n. 2, 2012. DOI: 10.7166/8-2-395. Disponível em: http://sajie.journals.ac.za/pub/article/view/395. Acesso em: 4 may. 2024.