Fisher, Robert C.
Dickenson Publishing Company, Inc., 1970
Buku Teks
Anton, Howard, author
Erlangga, 2004
Buku Teks
Pillis, John de, author
Holt, Rinehart and Winston, 1969
Buku Teks
Lawson, Terry, author
John Wiley & Sons, 1996
Buku Teks
Anton, Howard, author
John Wiley & Sons, 1984
Buku Teks