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Lua i Stíl Chicago (17ú heag.)SHARPE, Pamela J. Barron's Practice Exercises for the TOEFL Test of English as a Foreign Language.-- Ed.5. Jakarta: Binarupa Aksara, 2005.
Lua MLA (9ú heag.)SHARPE, Pamela J. Barron's Practice Exercises for the TOEFL Test of English as a Foreign Language.-- Ed.5. Binarupa Aksara, 2005.
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