Nyembwe, Kasongo, Dady Oyombo, Deon J de Beer, and PJM Van Tonder. 2016. “SUITABILITY OF A SOUTH AFRICAN SILICA SAND FOR THREE-DIMENSIONAL PRINTING OF FOUNDRY MOULDS AND CORES”. The South African Journal of Industrial Engineering 27 (3):230-37. https://doi.org/10.7166/27-3-1662.