Abraham, OG, JO Faluyi, and CC Nwokeocha. 2021. “Inter-Varietal Sterility and Fertility Restoration in Oryza Sativa Linn”. ORYZA-An International Journal of Rice 58 (4): 463-76. http://epubs.icar.org.in/index.php/OIJR/article/view/119640.