TY  - BOOK
AU  - Trochim, William M.
AU  - Donneiiy, James P./Arora, Kanika/
TI  - Research Methods: The essential knowledge base
SN  - 9788131530856
U1  - 001.42  T741R 
PY  - 2016///
CY  - New Delhi
PB  - Cengage Learning
ER  -