Gaya APA

centre, S, E, E. (2012). Prepareation Toelf and Toeic (Cet. 1). Surakarta: DSV Production.

Gaya MLA

centre, Stan, Entrepreneurship,, Education. "Prepareation Toelf and Toeic". Cet. 1 Surakarta: DSV Production, 2012. Text.