SINGH, P K, R L SRIVASTAVA, VED NARAIN, and S D DUBEY. 2011. “Combining Ability and Heterosis for Seed Yield and Oil Content in Linseed (Linum usitatissimum)*”. The Indian Journal of Agricultural Sciences 79 (3). https://epubs.icar.org.in/index.php/IJAgS/article/view/5289.