Silverthorn, Dee Unglaub, author
Pearson, Benjamin Cummings, 2010
Buku Teks
Delaney, David, author
Blackwell Publishing, 2005
Buku Teks
Getis, Arthur, author
Macmillan, 1985
Buku Teks
Martini, Frederic H., author
Prentice-Hall, 1995
Buku Teks
McClintic, J. Robert
John Wiley & Sons, 1976
Buku Teks