Creswell, J. W. Educational research: Planning, conducting, and evaluating quantitative and qualitative.
Citazione stile Chigago Style (17a edizione)Creswell, J. W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative.
Citatione MLA (8a ed.)Creswell, J. W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.