GRAMMAR & GIYOTO, e. (1999). Grammar 2. Muhammadiyah Unniversity Press.
Chicago Style aipamenaGRAMMAR and et.al GIYOTO. Grammar 2. Surakarta: Muhammadiyah Unniversity Press, 1999.
MLA aipamenaGRAMMAR and et.al GIYOTO. Grammar 2. Muhammadiyah Unniversity Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.