Curwen, Peter J.
Macmillan, 1974
Buku Teks
Farrar, Donald E., author
Prentice-Hall, 1970
Buku Teks
Chopra, O.P., author
Tata McGraw-Hill, 1984
Buku Teks
Ulbrich, Holley H., author
Barrons, 1990
Buku Teks
Maurice, S. Charles, author
McGraw-Hill, 2002
Buku Teks