TY  - BOOK
AU  - Singh, Arun Kumar  .
TI  - Tests,measurements and research methods in behavioural sciences / 
U1  - SN1(f) 
PY  - 1997///
CY  - Patna : 
PB  - Bharati Bhawan(Publishers &Distributors) , 
KW  - Psycology
ER  -