Cheema, M.A., M.A. Malik, A. Hussain, S.H. Shah, and S.M.A. Basra. 2000. “Responses of Canola to Different Row and Plant Spacings”. Journal of Agricultural and Marine Sciences [JAMS] 5 (2):69-74. https://journals.squ.edu.om/index.php/jams/article/view/571.