May, T. (1997). Social research: Issues, methods and process (2nd ed.). Buckingham: Open University Press.
Trích dẫn kiểu ChicagoMay, Tim. Social Research: Issues, Methods and Process. 2nd ed. Buckingham: Open University Press, 1997.
MLA citiranjeMay, Tim. Social Research: Issues, Methods and Process. 2nd ed. Buckingham: Open University Press, 1997.
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