Gaya APA

Keat, P, G., Young, P, K. (2003). Managerial Economics : Economic Tools for Today's Decision makers (Edisi ke-4). Amerika: Prentice-Hall.

Gaya MLA

Keat, Paul, G., Young, Philip, K.Y. "Managerial Economics : Economic Tools for Today's Decision makers". Edisi ke-4 Amerika: Prentice-Hall, 2003. Textbook.