Gaya APA

EBOOK : BARRON’S : The Leader in Test Preparation : TOEFL IBT, 14th Edition. (2013). New York: Barron’s Educational Series, Inc..

Gaya MLA

EBOOK : BARRON’S : The Leader in Test Preparation : TOEFL IBT, 14th Edition. 14. New York: Barron’s Educational Series, Inc., 2013. Text.