APA aipamena

Lougheed, L. (2012). IELTS practice exams. Tp. HCM: Tổng hợp.

Chicago Style aipamena

Lougheed, Lin. IELTS Practice Exams. Tp. HCM: Tổng hợp, 2012.

MLA aipamena

Lougheed, Lin. IELTS Practice Exams. Tp. HCM: Tổng hợp, 2012.

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