Fernando, Sangeeth Prasad. Ban on polythene bags and lunch sheets in Sri Lanka: impact, challenges and alternatives / Sangeeth Prasad Fernando...[et al.] - Colombo Hector kobbekaduwa agrarian research and training institute 2020 - xiii, 88 p. Includes references and annexure ISBN: 9789556122596 Subjects--Topical Terms: Environment-protection Dewey Class. No.: 333.7 / BAN