TY  - GEN
AU  - Attar Singh
TI  - Research methodology
SN  - 9788174455642
U1  - 001.42 ATT  
PY  - 2010///.
CY  - New Delhi : 
PB  - Mohit Publications, 
KW  - Systems theory
KW  - Research methodology--Historical
KW  - Scientific methods
ER  -