Gaya APA

WOOLDRIDGE, J, M. (2020). INTRODUCTORY ECONOMETRICS : A MODERN APPROACH SEVENTH EDITION (ED. 7). USA: CENGAGE.

Gaya MLA

WOOLDRIDGE, JEFFREY, M.. "INTRODUCTORY ECONOMETRICS : A MODERN APPROACH SEVENTH EDITION". ED. 7 USA: CENGAGE, 2020. Text.