How to design and evaluate research in education /
Fraenkel, JR
How to design and evaluate research in education / Jack R. Fraenkel, Norman E. Wallen, Helen H. Hyun - 8th ed. - New York : McGraw-Hill, 2011 - xxviii, 642p. - Book
9780071315180
Research
Education
Design
Evaluation
L 20.
How to design and evaluate research in education / Jack R. Fraenkel, Norman E. Wallen, Helen H. Hyun - 8th ed. - New York : McGraw-Hill, 2011 - xxviii, 642p. - Book
9780071315180
Research
Education
Design
Evaluation
L 20.