RAJ , Y. E. A., and B. GEETHA. “Relation Between Southern Oscillation Index and Indian Northeast Monsoon As Revealed in Antecedent and Concurrent Modes”. MAUSAM 59, no. 1 (January 1, 2008): 15–34. Accessed May 14, 2025. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/1129.