TY  - BOOK
AU  - Fraenkel, Jack R.
TI  - How to design and evaluate research in education 
SN  - 978 1 259 25392 8
U1  - 370 72 FRA 
PY  - 2015///
CY  - New York 
PB  -   McGraw-Hill Education
KW  - EDUCATION RESEARCH EVALUATION
ER  -