Interannual variability of precipitation in Sri Lanka: comparative study of observation periods 1881-1980, 1931-1980, 1951-1980. MAUSAM [Internet]. 1990 Jan. 1 [cited 2025 Dec. 29];41(1):115-8. Available from: https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/2442