James E Davis, colsultan
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Buku Referensi
Stewart, Jon, 1962-, and four others, author and editor
Grand Central, 2010
Buku Referensi
Press, Frank, author
W H Freeman , 1974
Buku Teks
Hamilton, Mark, author
Neo-tech books, 2000
Buku Teks
Houghton Mifflin, 1967
Buku Teks