Thomas, Beena, and S.G. Sreekumar. “Combining Ability for Biological Nitrogen Fixation Traits and Yield Components in Black Gram [<i>Vigna mungo< I> (L.) Hepper]”. Journal of Tropical Agriculture 39, no. 2 (October 19, 2006): 93–97. Accessed November 24, 2024. https://jtropag.kau.in/index.php/ojs2/article/view/31.