Collins Cobuild. (2014). Key words for Cambridge English first: Vocabulary for Cambridge English: First (FCE) and First for schools. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt.
শিকাগো স্টাইলে সাইটেশনCollins Cobuild. Key Words for Cambridge English First: Vocabulary for Cambridge English: First (FCE) and First for Schools. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2014.
এমএলএ সাইটেশনCollins Cobuild. Key Words for Cambridge English First: Vocabulary for Cambridge English: First (FCE) and First for Schools. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2014.
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