M. Kamruzzaman, M. A. Kayum, M. M. Hasan, M. M. Hasan, and J. A. T. D. Silva, “Effect of split application of nitrogen fertilizer on yield and yield attributes of transplanted aman rice (Oryza sativa L.)”, Bangladesh J. Agric. Res, vol. 38, no. 4, pp. 579–587, May 2014.