Niroula, R., B. Sah, H. Bimb, and S. Nayak. “Effect of Genotype and Culture Media on Callus Induction and Plant Regeneration from Matured Rice Grain Culture”. Journal of the Institute of Agriculture and Animal Science, vol. 26, Apr. 2005, pp. 21-26, doi:10.3126/jiaas.v26i0.607.