Khatiwada, M., N. Chaudhary, S. Sah, and J. Dutta. “Effects of Sowing Dates on Grain Yield and Oil Content of Rapeseed (Brassicacampestris Var L. Toria) Varieties in Middle Terai Region, Nawalparasi, Nepal”. Journal of Agriculture and Environment, vol. 22, June 2021, pp. 61-70, doi:10.3126/aej.v22i0.46786.