TY  - BOOK
AU  - R.Johnson,Burke
AU  - Christensen,Larry
TI  - Educational research: quantitative, qualitative, and mixed approaches 
SN  - 9781544337838
PY  - 2020///
CY  - Thousand  Oaks, Calif.
PB  - Sage
KW  - Education
KW  - Research
KW  - Science
KW  - Experiments
KW  - Methodology
KW  - Experimental design
N1  - Includes bibliographical references and index
ER  -