“An Assessment of the Use of Mineral and Organic Fertilizers by Smallholder Farmers in Vhembe District, Limpopo Province, South Africa”. International Journal of Manures and Fertilizers 8, no. 1 (May 28, 2020): 1–6. Accessed April 6, 2026. https://www.ijpp.org/journal/index.php/ijmf/article/view/101.