TY  - BOOK
AU  - Wooldridge,Jeffrey M.
TI  - Introductory econometrics: a modern approach 
SN  - 9781337558860
U1  - 330.015195 
PY  - 2020///
CY  - Cengage
PB  - Boston, 
KW  - Econometrics
KW  - Data issues
KW  - Mathematical tools
KW  - Matrix algebra
ER  -