Kim, S., & Kim Soyeong; Park Won; Lee Yun-u; Lê Huy Lâm. (2009). Big step toeic 3: 3 steps to conquer the New TOEIC test. Tp. Hồ Chí Minh: Nxb. Tổng hợp Tp. Hồ Chí Minh,Công ty TNHH Nhân Trí Việt.
शिकागो स्टाइल उद्धरणKim, Soyeong, और Kim Soyeong; Park Won; Lee Yun-u; Lê Huy Lâm. Big Step Toeic 3: 3 Steps to Conquer the New TOEIC Test. Tp. Hồ Chí Minh: Nxb. Tổng hợp Tp. Hồ Chí Minh,Công ty TNHH Nhân Trí Việt, 2009.
एमएलए उद्धरणKim, Soyeong, और Kim Soyeong; Park Won; Lee Yun-u; Lê Huy Lâm. Big Step Toeic 3: 3 Steps to Conquer the New TOEIC Test. Tp. Hồ Chí Minh: Nxb. Tổng hợp Tp. Hồ Chí Minh,Công ty TNHH Nhân Trí Việt, 2009.
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