Gaya APA

Ph.D, P, J., S.S, Y, W. (2013). Kunci sukses toefl iBT: Test of english as a foreign language internet-based test (Cet. Ke-1). Tanggerang: Paperplus Publisher.

Gaya MLA

Ph.D, Pamela, J.S,., S.S, Y.Istiyoso, Wahyu,. "Kunci sukses toefl iBT: Test of english as a foreign language internet-based test". Cet. Ke-1 Tanggerang: Paperplus Publisher, 2013. Text.