W, Wabekwa, J., Degri, M. M., and Dangari, L. C. “The Effects of Nitrogen Mineral on Yield Performance of Sunflower <i>(Helianthus Annuus L.)< i> In Bauchi State, Nigeria”. Journal of Environmental Issues and Agriculture in Developing Countries (JEIADC) 4, no. 2 (November 13, 2023): 58–61. Accessed September 19, 2024. http://icidr.org.ng/index.php/jeiadc/article/view/215.