Gaya APA

Hill, R, C. et al (2012). Principles of Econometrics: Internatinal student version. Ed.4 (Ed.ke-4). : Erangga.

Gaya MLA

Hill, R., Carter. et al. "Principles of Econometrics: Internatinal student version. Ed.4". Ed.ke-4 : Erangga, 2012. Text.