Gaya APA

PRIYONGGO, A. (2005). COMMON ERRORS IN TOEFL (Cet. 1). Yogyakarta: DIGLOSSIA MEDIA GROUP.

Gaya MLA

PRIYONGGO, AMBANG. "COMMON ERRORS IN TOEFL". Cet. 1 Yogyakarta: DIGLOSSIA MEDIA GROUP, 2005. Text.