APA (7e ed.) Bronvermelding

Creswell, J. W. (2021). Educational research: Planning, conducting, and evaluating quantitative and qualitative research (Sixth edition.). Pearson Education Limited.

Chicago (17e ed.) Bronvermelding

Creswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. Sixth edition. Harlow, England: Pearson Education Limited, 2021.

MLA (8e ed.) Bronvermelding

Creswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. Sixth edition. Pearson Education Limited, 2021.