Singh, Monika, et al. “Genetic Divergence Studies for Drought Tolerance in Rice (Oryza Sativa L.) Using Morphological Traits and Molecular Markers”. ORYZA-An International Journal of Rice, vol. 54, no. 4, Mar. 2018, http://epubs.icar.org.in/index.php/OIJR/article/view/76950.