TY  - BOOK
AU  - Creswell,John W.
AU  - Creswell,J.David
TI  - Research design: qualitative, quantitative, and mixed methods approaches 
SN  - 9781506386706
AV  - H 62 .C6963 2018
PY  - 2018///]
CY  - Los Angeles, London, New Delhi, Singapore, Washington DC, Melbourne
PB  - SAGE
KW  - Social sciences
KW  - Research
KW  - Methodology
KW  - Statistical methods
KW  - fast
N1  - Includes bibliographical references (pages 253-261) and indexes
ER  -