De Silva, H. C. C., R. A. Maithreepala, H. B. Asanthi, and T. Priyadarshana. 2016. “Spatial and Temporal Variation of Physico-Chemical Parameters and Primary Productivity in Muruthawela Reservoir, Sri Lanka”. Asian Journal of Agriculture and Food Sciences 4 (4). https://ajouronline.com/index.php/AJAFS/article/view/4001.