Gaya APA

Yogyakarta, E. (). TOEFL Test of English As A Foreign Language Preparation Course (Cet. I). Yogyakarta: Eldi Yogyakarta.

Gaya MLA

Yogyakarta, Eldi. "TOEFL Test of English As A Foreign Language Preparation Course". Cet. I Yogyakarta: Eldi Yogyakarta, . .