A. I. Afe, K. Nuruden, and U. Yaman, “Evaluation of growth and yield of cowpea (Vigna unguiculata L.Walp) cultivars and sorghum (Sorghum bicolor L. Moench) with their competitive behavior in cowpea-sorghum intercropping. ”, BJARE, vol. 5, no. 1, pp. 35–48, Apr. 2023.