Gaya APA

Team, E, T, A. ([s.a]). Grand Master of English Grammar, Tenses and Vocabulary /English Tutor Association Team . Jakarta: Edu Penguin.

Gaya MLA

Team, English, Tutor, Association. "Grand Master of English Grammar, Tenses and Vocabulary /English Tutor Association Team". Jakarta: Edu Penguin, [s.a]. Text.