Dellar, H., & Walkley, A. (2018). Outcomes: Pre - Intermediate student's book. Tp. Hồ Chí Minh: Cengage Learning Vietnam Company Limited.
Chicago Stili AlıntıDellar, Hugh, ve Andrew Walkley. Outcomes: Pre - Intermediate Student's Book. Tp. Hồ Chí Minh: Cengage Learning Vietnam Company Limited, 2018.
MLA AlıntıDellar, Hugh, ve Andrew Walkley. Outcomes: Pre - Intermediate Student's Book. Tp. Hồ Chí Minh: Cengage Learning Vietnam Company Limited, 2018.
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