Lougheed, l. (2007). Longman preparation series for the new TOEIC test, advanced, course. Pearson Education.
Lua i Stíl Chicago (17ú heag.)Lougheed, lin. Longman Preparation Series for the New TOEIC Test, Advanced, Course. Pearson Education, 2007.
Lua MLA (9ú heag.)Lougheed, lin. Longman Preparation Series for the New TOEIC Test, Advanced, Course. Pearson Education, 2007.
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