(2006). Collection of tests Level B. [Tp. Hồ Chí Minh]: [Đại học sư phạm Tp. Hồ Chí Minh].
শিকাগো স্টাইলে সাইটেশনCollection of Tests Level B. [Tp. Hồ Chí Minh]: [Đại học sư phạm Tp. Hồ Chí Minh], 2006.
এমএলএ সাইটেশনCollection of Tests Level B. [Tp. Hồ Chí Minh]: [Đại học sư phạm Tp. Hồ Chí Minh], 2006.
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