Gaya APA

Pratiwi, A., Mayasari, F. (2011). 100 % Best guide to TOEFL up to 600 Cet.3 . Jakarta: .

Gaya MLA

Pratiwi, Andhika., Mayasari, Fitria. "100 % Best guide to TOEFL up to 600 Cet.3". Jakarta: , 2011. 400_Language.