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Sage, 2002
Buku Referensi
Myer Kutz
McGraw-Hill, 2011
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Buku Referensi
Piersol, Allan G., author
McGraw-Hill, 2010
Buku Teks
Carpenito-Moyet, Lynda Juall, author
Lippincott , 1999
Buku Teks