le Roux, L. J., Zunckel, M., & McCormick, S. (2009). Reduction in air pollution using the ‘basa njengo magogo’ method and the applicability to low-smoke fuels. Journal of Energy in Southern Africa, 20(3), 3–10. https://doi.org/10.17159/2413-3051/2009/v20i3a3303