Yusufu, Funmilayo Alfa. “Assessment of Nutrient Depletion in Mining Sites and Smallholders Farms in the Angwan Doka, Kokona Local Government Area, Nasarawa State Nigeria”. Journal of Environmental Issues and Agriculture in Developing Countries (JEIADC), vol. 17, no. 1, May 2025, pp. 15-28, https://icidr.org.ng/index.php/jeiadc/article/view/1746.