"Agronomic Performance, Genetic Variability and Interrelationships of Traits in Some Cowpea (Vignaunguiculata L.Walp) Genotypes under the Semi-Arid Tropics of Sudan". University of Khartoum Journal of Agricultural Sciences 29, no. 2 (سبتمبر 5, 2021). تاريخ الوصول مايو 25, 2026. https://onlinejournals.uofk.edu/uofkjas/article/view/164.