Hettiarachchi, Missaka, Jayani Anurangi, and Ajith de Alwis. “Characterisation and Description of Surface Water Quality in the Threatened Urban Wetlands Around the City of Colombo”. Journal of Wetlands Ecology 5 (December 28, 2011): 10–19. Accessed April 28, 2024. https://www.nepjol.info/index.php/JOWE/article/view/2831.