Van Valkenburg, M.E. (Mac Elwyn), author
Prentice-Hall, 1982
Buku Teks
Chua, Leon O.
McGraw-Hill, 1987
Buku Teks
Thomas, Ronald E.
Prentice-Hall, 1994.
Buku Teks
Bogart, Theodore F., author
John Wiley & Sons, 1983
Buku Teks
Coughlin, Robert F., author
Prentice-Hall, 2001
Buku Teks