Devellis, Robert F
Scale development : theory and applications - New Delhi Sage Publications 1991 - 121 - Applied social research methods series .
080393375X
Reliability
Validity
300.72 / DEV/SC
Scale development : theory and applications - New Delhi Sage Publications 1991 - 121 - Applied social research methods series .
080393375X
Reliability
Validity
300.72 / DEV/SC