Iftikhar Hussain Khalil, Amir Sohail, Sikandar Shah, Farhatullah,, AND Fazal Hadi, Tanvir Burni,. " 49. Combining ability studies of biochemical traits in intra and interspecific crosses of brassica" Pure and Applied Biology (PAB) [Online], Volume 7 Number 2 (24 May 2018)