E .A, O. ., E. . P .G, A. . S .O, O. H, and O. C. C. “Evaluation of Bambara Groundnut (Vigna Subterranea (L) Verdc.) Varieties for Adaptation to Rainforest Agroecological Zone of Delta State, Nigeria”. International Journal of Sustainable Agricultural Research, vol. 7, no. 1, Dec. 2019, pp. 39-43, doi:10.18488/journal.70.2020.71.39.43.