Johns Sans. (1993). Belajar Wordperfect 5.2 For Windows. Jakarta: PT Elex Media Komputindo.
Chicago Style aipamenaJohns Sans. Belajar Wordperfect 5.2 For Windows. Jakarta: PT Elex Media Komputindo, 1993.
MLA aipamenaJohns Sans. Belajar Wordperfect 5.2 For Windows. Jakarta: PT Elex Media Komputindo, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.