Research Design: Qualitative, Quantitative and Mixed Methods Approaches /
by John W. Creswell.
- 4th. ed . -
- New Delhi: Sage Publications, 2013.
- xviii,190,G-9,R-9,I-9p. ; 23.6 cm.
978-93-532-8735-I
Quantitative Methods. Mixed Method Procedures. Strategies and Ethical Considerations.