Gough, C. (2010). Preparation for IELTS: IELTS target 5.0 : Leading to IELTS academic: Workbook. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh; Công ty Nhân Trí Việt.
শিকাগো স্টাইলে সাইটেশনGough, Chris. Preparation for IELTS: IELTS Target 5.0 : Leading to IELTS Academic: Workbook. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh; Công ty Nhân Trí Việt, 2010.
এমএলএ সাইটেশনGough, Chris. Preparation for IELTS: IELTS Target 5.0 : Leading to IELTS Academic: Workbook. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh; Công ty Nhân Trí Việt, 2010.
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