Zakka, T., M. R. Hassan, R. J. Tanko, B. M. Munza, and A. A. Sadiq. 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):175-84. https://doi.org/10.51791/njap.v48i1.2883.