Gaya APA
Creswell, J, W., Creswell, J, D. (2023).
Research Design: Qualitative, Quantitative, and Mixed Methodes Approaches (6).
California:
Sage Publications.
Gaya MLA
Creswell, John, W.., Creswell, J., David.
"Research Design: Qualitative, Quantitative, and Mixed Methodes Approaches".
6
California:
Sage Publications,
2023.
Buku Teks.