Gaya APA

Locker, K, O, L, K, O. (2006). Business and administrative communication.-- (Ed. 7.--). America: Mc-Graw-Hill.

Gaya MLA

Locker, Kitty, O., Locker,, Kitty, O.. "Business and administrative communication.--". Ed. 7.-- America: Mc-Graw-Hill, 2006. Buku.