Guhathakurta, Pulak, and Nilesh Wagh. “Analysis of Droughts in South-West Indian Ocean Countries Using SPI and SPEI and Their Relationship With Global SST”. JNRD - Journal of Natural Resources and Development 12 (July 1, 2022): 60–81. Accessed April 26, 2024. https://journals.ub.uni-koeln.de/index.php/JNRD/article/view/899.