APA-viite (7. p.)
Hopkins, K. D. (1990). Educational and psychological measurement and evaluation (7th ed.). Prentice Hall.
Chicago-viite (17. p.)
Hopkins, Kenneth D. Educational and Psychological Measurement and Evaluation. 7th ed. New Jersey: Prentice Hall, 1990.
MLA-viite (9. p.)
Hopkins, Kenneth D. Educational and Psychological Measurement and Evaluation. 7th ed. Prentice Hall, 1990.
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