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Gaya APA
Untara, W.(2009).Cara Mudah Memahami dan Menguasai Bahasa Inggris .Yogyakarta:Yogyakarta: Mutiara Abadi.
Gaya MLA
Untara, Wahyu."Cara Mudah Memahami dan Menguasai Bahasa Inggris".Yogyakarta:Yogyakarta: Mutiara Abadi,2009.Text.