Ansari, A, et al. “Multivariate Analysis in Cytoplasmic Male Sterile Lines of Rice (<i>Oryza sativa< I> L.)”. Bangladesh Journal of Plant Breeding and Genetics, vol. 22, no. 2, Dec. 2011, pp. 25-28, https://banglajol.info/index.php/BJPBG/article/view/9087.