L. K. Naidu and S. Srinivas, “Length of growing period as a criterion for identifying different drought types in Karnataka*”, Indian J Agri Sci, vol. 75, no. 9, Sep. 2005, Accessed: Oct. 27, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/9162