Bordens, K. S., & Abbott, B. B. (2014). Research design and methods: A process approach (Ninth edition.). McGraw-Hill Education.
Chicago-viite (17. p.)Bordens, Kenneth S., ja Bruce B. Abbott. Research Design and Methods: A Process Approach. Ninth edition. New York: McGraw-Hill Education, 2014.
MLA-viite (9. p.)Bordens, Kenneth S., ja Bruce B. Abbott. Research Design and Methods: A Process Approach. Ninth edition. McGraw-Hill Education, 2014.
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