Andrew, Osivmete Victor.,Egbucha, Kelechukwu Chris., Omosun, Garuba., Akanwa, Franklin Eberechi and Akpanudo, Samuel Innocent. “Effect of X-Ray Irradiation on the Growth and Yield Parameters of Four Cowpea (Vigna Unguiculata (L.) Walp) Genotypes”. NIPES - Journal of Science and Technology Research, vol. 3, no. 4, Dec. 2021, doi:10.37933/nipes/3.4.2021.6.