Mechanized Sand Mining in the Maha Oya, Sri
16.08.2016· [1] Report by: Environmental Foundation Ltd., MAHA OYA UNDER THREAT. 2016, Sri Lanka. (Accessed 14/08/2016) [click to view] [2] Report by: B. Kamaladasa, Issues and challenges in river management due to excessive sand mining. Irrigation Department of Sri Lanka Colombo (Accessed 14/08/2016) [click to view]