Gaya APA

Lou, R. (2007). Toefl Common Errors and Grammar Practise: the Book that Makes You Score Higher (Cet. 1.--). Jakarta: E Plus.

Gaya MLA

Lou, Robby. "Toefl Common Errors and Grammar Practise: the Book that Makes You Score Higher". Cet. 1.-- Jakarta: E Plus, 2007. Text.