TY  - BOOK
AU  - Creswell, John W.
AU  - Creswell, David J.
TI  - Research Design: Qualitative, quantitative and mixed methods approaches
SN  - 9780506386768
AV  - H 62 .C69 2018 16931
PY  - 2019///
CY  - London
PB  - SAGE
KW  - 1. social sciences research methodology 2. Interdisciplinary research 3. quantitative research  methodology 4. qualitative research methodology
N1  - includes bibliographical references and index
ER  -