(2004). Undersstanding spoken english: Book two. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh.
シカゴスタイル引用形Undersstanding Spoken English: Book Two. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh, 2004.
MLA引用形式Undersstanding Spoken English: Book Two. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh, 2004.
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