CHOWDHURY, A, RK MUKHOPADHYAY, and KCSINHA RAY. “Low Frequency Oscillations in Summer Monsoon Rainfall over India”. MAUSAM 39, no. 4 (October 1, 1988): 375–382. Accessed November 22, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/3908.