Rahman, MH, MR Islam, M Jahiruddin, and MQ Haque. 2011. “Economics of Fertilizer Use in the Maize-Mungbean/Dhaincha-T.Aman Rice Cropping Pattern”. Journal of the Bangladesh Agricultural University 9 (1):37-42. https://www.banglajol.info/index.php/JBAU/article/view/8741.