Patrick Leman, Andy Bremner, Ross D Parke, Mary Guavain
McGraw-Hill, 2012
Buku Teks
Strommen, Ellen A., author
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Buku Teks
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McGraw-Hill , 1995
Buku Teks
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Worth Publisher, 2002
Buku Teks
Miller, Patricia H., author
W.H. Freeman, 1989
Buku Teks