Singh, P., I. Khan, S. Singh, R. Tiwari, U. Shukla, and P. Philip. “Performance of Physiological Basis of Rice Hybrids under System of Rice Cultivation”. Bangladesh Journal of Botany, vol. 43, no. 3, Jan. 2015, pp. 359-61, doi:10.3329/bjb.v43i3.21614.