Montague, John, author
John Wiley & Sons, 2010
Buku Teks
SSi Press, Tt
Buku Referensi
Bradley, Julia Case, author
McGraw-Hill Irwin, 2003
Buku Teks
Bradley, Julia Case, author
McGraw-Hill, 2011
Buku Teks
Wolfe, R. J., author
Oxford University Press, 2000
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