Gaya APA

Taylor, S., Gartside, L. (2005). Gartside's model business letters and other business documents fifth edition (Ed. 5). Jakarta: Indeks.

Gaya MLA

Taylor, Shirley., Gartside, Leonard. "Gartside's model business letters and other business documents fifth edition". Ed. 5 Jakarta: Indeks, 2005. Sekretari D3.