Research Methods, Design, and Analysis
av Larry B. Christensen, R. Burke Johnson, Lisa A. Turner (2010)
Educational research : quantitative, qualitative, and mixed approaches
av Burke Johnson (2017)
Educational research : quantitative and qualitative approaches
av Burke Johnson (2000)
Research Methods, Design, and Analysis
av Larry B. Christensen, R. Burke Johnson, Lisa Anne Turner
Educational research : quantitative, qualitative, and mixed approaches
av Burke Johnson (2012)