S. K. PRASAD, et al. “EFFECT OF NITROGEN AND ZINC FERTILIZER ON PEARL MILLET (PENNISETUM GLAUCUM) UNDER AGRI-HORTI SYSTEM OF EASTERN UTTAR PRADESH”. The Bioscan, vol. 9, no. 1, Jan. 2014, pp. 163-6, https://thebioscan.com/index.php/pub/article/view/665.