APA-čujuhus (7. p.)
Keppel, G., & Wickens, T. D. (2004). Design and analysis: A researcher's handbook (4th ed.). Pearson.
Chicago-čujuhus (17. p.)
Keppel, Geoffrey, juo Thomas D. Wickens. Design and Analysis: A Researcher's Handbook. 4th ed. New Jersey: Pearson, 2004.
MLA-čujuhus (9. p.)
Keppel, Geoffrey, juo Thomas D. Wickens. Design and Analysis: A Researcher's Handbook. 4th ed. Pearson, 2004.
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