SINGH, O. P., T. M. A. . KHAN, S. . RAHMAN, and S. . UDDIN. “Summer Monsoon Rainfall over Bangladesh in Relation to Multivariate ENSO Index”. MAUSAM, vol. 51, no. 3, July 2000, pp. 255-60, doi:10.54302/mausam.v51i3.1783.