VYAS Preeta. (2005). Effective Learning Grammar Exercises. Jakarta: Bestari Kids.
Chicago Style aipamenaVYAS Preeta. Effective Learning Grammar Exercises. Jakarta: Bestari Kids, 2005.
MLA aipamenaVYAS Preeta. Effective Learning Grammar Exercises. Jakarta: Bestari Kids, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.