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1. How to design and evaluate research in education

by Fraenkel, Jack R | Wallen, Norman E.

Material type: book Book Publisher: New York McGraw-Hill 1993Availability: Items available for loan: បណ្ណាល័យនីតិសាស្ត្រ [Call number: 370.72 2003] (2).

2. How to design and evaluate research in education /

by Fraenkel, Jack R | Wallen, Norman E.

Edition: 5th ed.Material type: book Book Publisher: Boston : McGraw-Hill Higher Education, c2003Availability: Items available for loan: បណ្ណាល័យនីតិសាស្ត្រ [Call number: 370.72 2003] (2).

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