Cozby, P. C., & Paul C. Cozby. Methods in behavioral research. New York, NY: McGraw-Hill Higher Education.
Trích dẫn kiểu ChicagoCozby, Paul C., và Paul C. Cozby. Methods in Behavioral Research. New York, NY: McGraw-Hill Higher Education.
Deismireacht MLACozby, Paul C., và Paul C. Cozby. Methods in Behavioral Research. New York, NY: McGraw-Hill Higher Education.
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