Gaya APA

Dugger, J., Carey, E, B, J, A. (2002). Business letters for busy people : time saving, ready-to-use letters for any occasion (4th.ed.). Petaling jaya, Malaysia: Advantage Quest Publications.

Gaya MLA

Dugger, Jim., Carey, Edited, By:, John, A.. "Business letters for busy people : time saving, ready-to-use letters for any occasion". 4th.ed. Petaling jaya, Malaysia: Advantage Quest Publications, 2002. Teks.