Ebri, Bini O., et al. “Performance of Bambara Groundnut (Vigna Subterranea L. Verdc) in Calabar, Nigeria As Influenced by Lime and Zinc Fertilizer Application”. Journal Of Agriculture, Forestry & Environment , vol. 7, no. 1, Apr. 2025, pp. 94-104, https://jafe.net.ng/index.php/home/article/view/124.