[1]
J. H. Makoi and P. A. Ndakidemi, “Effect of plant densities and cropping systems on yield components of cowpea (<i>Vigna unguiculata</i> L. Walp.) genotypes and sorghum (<i>Sorghum bicolor </i>L. Moench.)”, JTA, vol. 48, no. 2, pp. 28–33, Dec. 2010.