Khan, M., S. Bhuiyan, M. Rashid, S. Ghosh, and S. Paul. “Variability and Heritability Analysis in Short Duration and High Yielding Brassica Rapa L”. Bangladesh Journal of Agricultural Research, vol. 38, no. 4, May 2014, pp. 647-5, doi:10.3329/bjar.v38i4.19020.