Gaya APA

Business / Ricky W. Griffin ; Ronald J. Ebert. (2001). Englewood Cliffs, NJ: Prentice-Hall, c.

Gaya MLA

Business / Ricky W. Griffin ; Ronald J. Ebert. 3rd ed.. Englewood Cliffs, NJ: Prentice-Hall, c, 2001. Buku Wajib.