Research design : qualitative, quantitative, and mixed methods approaches
/ John W. Cresswell & J. David Creswell
- 5th ed.
- Los Angeles : Sage Publications, 2018
- 275 p.
1. Preliminary consideration 2. Designing research
9781506386768 (pbk)
Social sciences--Research--Methodology--Social sciences--Statistical methods--Social service--Research--Methodology