Panda, M M, and S K Mohanthy. “Time of Application of Low Dose of Nitrogen to Rainy-Season Rice (Oryza Sativa) for Increasing N-Use Efficiency”. The Indian Journal of Agricultural Sciences, vol. 65, no. 4, May 2012, https://epubs.icar.org.in/index.php/IJAgS/article/view/18225.