Sarkar, S. “MANAGEMENT PRACTICES FOR ENHANCING FERTILIZER USE EFFICIENCY UNDER RICE-WHEAT CROPPING SYSTEM IN THE INDO-GANGETIC PLAINS”. Innovare Journal of Agricultural Sciences, vol. 3, no. 2, Apr. 2015, pp. 5-10, https://mail.innovareacademics.in/journals/index.php/ijags/article/view/5734.