Kim, Y., & Son, I. (2010). English communication for your career air travel and tourism. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt.
Παραπομπή Chicago StyleKim, Young-mi, και Ik-pyo Son. English Communication for Your Career Air Travel and Tourism. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2010.
Παραπομπή MLAKim, Young-mi, και Ik-pyo Son. English Communication for Your Career Air Travel and Tourism. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2010.
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