TY  - GEN
AU  - Devellis, Robert F
TI  - Scale development: theory and applications
T2  - Applied social research methods series
SN  - 9781506341569
U1  - 300.72 
PY  - 2016///
CY  - New Delhi
PB  - Sage
KW  - Scaling (social sciences)
KW  - Research methology
ER  -