Gaya APA

Tumijo, ., Slamet, R. (2009). Successful Strategis for TOEFL (-). Yogyakarta: Pustaka Widyatama.

Gaya MLA

Tumijo, ., Slamet, Riyanto. "Successful Strategis for TOEFL". - Yogyakarta: Pustaka Widyatama, 2009. Book.