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एमएलए (8वां संस्करण) प्रशस्ति पत्रIUCN--The World Conservation Union. Bangladesh Country Office, et al. Environmental Economics in Bangladesh: Proceedings of Workshops on Green/environmental Economics Held on 2 November, 1997 and on 18 February, 1998. IUCN--The World Conservation Union, Bangladesh Country Office ; Association for Green Accounting, Bangladesh, 1999.