Zakka, T., Hassan, M. R., Tanko, . R. J., Munza, B. M. ., & Sadiq, A. A. . (2021). Effect of variety and plant spacing on yield components of two sorghum varieties (Sorghum bicolor l. Moench). Nigerian Journal of Animal Production, 48(1), 175–184. https://doi.org/10.51791/njap.v48i1.2883