Jannat-E-Tajkia, A. . Sagar, and A. K. M. Z. . Hossain. “Effect of Nitrogen Fertilization on Growth, Yield and Proximate Composition of Selected Sorghum Varieties”. Journal of the Bangladesh Agricultural University, vol. 18, no. 2, June 2020, pp. 373–378, https://banglajol.info/index.php/JBAU/article/view/73643.