Marlan. (1992). Practice Makes Perfect for SMP Students BOOK III. CV Mitra Utama.
Chicago Style aipamenaMarlan. Practice Makes Perfect for SMP Students BOOK III. CV Mitra Utama, 1992.
MLA aipamenaMarlan. Practice Makes Perfect for SMP Students BOOK III. CV Mitra Utama, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.