Gaya APA

Winarso, W, W., Wasisto, A, W. (1993). WordPerfect 5.1, Tips & Trick (-). Yogyakarta: STIE YKPN.

Gaya MLA

Winarso, Wing, Wahyu., Wasisto, Agung, Wahyu. "WordPerfect 5.1, Tips & Trick". - Yogyakarta: STIE YKPN, 1993. .