Tuckman, B. W. (1999). Conducting educational research (5th ed.). Fort Worth, TX: Harcourt Brace College.
Chicago Style aipamenaTuckman, Bruce W. Conducting Educational Research. 5th ed. Fort Worth, TX: Harcourt Brace College, 1999.
MLA aipamenaTuckman, Bruce W. Conducting Educational Research. 5th ed. Fort Worth, TX: Harcourt Brace College, 1999.
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