TY  - BOOK
AU  - Dutta Roy Debdulal
TI  - Principles of questionnaire development with empirical studies
SN  - 978-81-90992-31-2
U1  - 300.723 
PY  - 2010///
CY  - New Delhi
PB  - Prasad Psycho
KW  - Questionnaires
KW  - Social sciences-research
ER  -