AMIRNIA, Reza, et al. “Evaluation of Qualitive and Quantitive Traits of Canola (Brassica Napus L.) in Different Sowing Dates and Regions”. Journal of Applied Biological Sciences, vol. 7, no. 1, June 2019, pp. 33-38, https://www.jabsonline.org/index.php/jabs/article/view/314.