Edmunds, P. (2007). Developing skills for the TOEFL iBT: Intermediate. Tp.HCM: Tổng hợp.
Chicago Style aipamenaEdmunds, Paul. Developing Skills for the TOEFL IBT: Intermediate. Tp.HCM: Tổng hợp, 2007.
MLA aipamenaEdmunds, Paul. Developing Skills for the TOEFL IBT: Intermediate. Tp.HCM: Tổng hợp, 2007.
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