Murphy, R., & Raymond Murphy. (2009). Essential Grammar in Use: Self-study reference and practice book for elementary students of English. Hà Nội: Lao động.
シカゴスタイル引用形Murphy, Raymond, , Raymond Murphy. Essential Grammar in Use: Self-study Reference and Practice Book for Elementary Students of English. Hà Nội: Lao động, 2009.
MLA引用形式Murphy, Raymond, , Raymond Murphy. Essential Grammar in Use: Self-study Reference and Practice Book for Elementary Students of English. Hà Nội: Lao động, 2009.
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