Sanjaya, H. L. K., T. Priyadarshana, and N. Wijayaratna. “Effect of Rainfall Abnormalities on Rice Yield in Hambanthota District, Sri Lanka”. Asian Journal of Agriculture and Food Sciences, vol. 2, no. 6, Dec. 2014, https://www.ajouronline.com/index.php/AJAFS/article/view/1905.