Gaya APA

Management. (2002). Amerika: Prentice-Hall.

Gaya Chicago

Management. Ed. 7. Amerika: Prentice-Hall, 2002. .

Gaya MLA

Management. Ed. 7. Amerika: Prentice-Hall, 2002. .

Gaya Turabian

Management. Amerika: Prentice-Hall, 2002. .