GEETHA, B., and Y. RAJ. “Spatial Patterns of Northeast Monsoon Rainfall over Sub-Regions of Southern Peninsular India and Sri Lanka As Revealed through Empirical Orthogonal Function Analysis”. MAUSAM, vol. 65, no. 2, Apr. 2014, pp. 185-04, doi:10.54302/mausam.v65i2.973.