APA Style

Gunadi, F, S. (1991). Belajar Sendiri Wordstar Professional Release 6 (Cet. 4). Jakarta: PT. Elex Media Komputindo.

MLA Style

Gunadi, Fx., Sutiono. "Belajar Sendiri Wordstar Professional Release 6". Cet. 4 Jakarta: PT. Elex Media Komputindo, 1991. Text.