Ramanayaka, D. (1982). The Katunayake investment promotion zone: A case study. International Labour Office.
Chicago-viite (17. p.)Ramanayaka, Dennis. The Katunayake Investment Promotion Zone: A Case Study. Bangkok: International Labour Office, 1982.
MLA-viite (9. p.)Ramanayaka, Dennis. The Katunayake Investment Promotion Zone: A Case Study. International Labour Office, 1982.
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