Mahumapelo, N. , Niekerk, A. , Sosibo, N. , Singh, N. (2020). 'Assessing the Suitability of South African Waste Foundry Sand as an Additive in Clay Masonry Products'. World Academy of Science, Engineering and Technology, Open Science Index 164, International Journal of Materials and Metallurgical Engineering, 14(8), 186 - 190.