Betsis, A. (2014). Successful FCE: 10 practice tests - 10 complete practice tests for the Cambridge English first. Thành phố Hồ Chí Minh: Tổng hợp.
শিকাগো স্টাইলে সাইটেশনBetsis, Andrew. Successful FCE: 10 Practice Tests - 10 Complete Practice Tests for the Cambridge English First. Thành phố Hồ Chí Minh: Tổng hợp, 2014.
এমএলএ সাইটেশনBetsis, Andrew. Successful FCE: 10 Practice Tests - 10 Complete Practice Tests for the Cambridge English First. Thành phố Hồ Chí Minh: Tổng hợp, 2014.
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