Hettiarachchi, Missaka, Jayani Anurangi, and Ajith de Alwis. 2011. “Characterisation and Description of Surface Water Quality in the Threatened Urban Wetlands Around the City of Colombo”. Journal of Wetlands Ecology 5 (December):10-19. https://doi.org/10.3126/jowe.v5i0.2831.