Langford, Joseph, author
Gramedia Pustaka Utama, 2010
Buku Teks
Butscher, Stephan A., author
PPM, 2006
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H. Sony Sugema, author
Gramedia Pustaka, 2005
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Astrid Savitri, author
Caesar Media Utama, 2019
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Leigh, Andrew
Gramedia , 2006
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