RAJ, Y. E. A. “Objective Determination of Northeast Monsoon Onset Dates over Coastal Tamil Nadu for the Period 1901-90”. MAUSAM 43, no. 3 (July 1, 1992): 273–282. Accessed January 16, 2025. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/3455.