Redlich, Norman
Little, Brown & Co., 1983
Buku Teks
Kavanagh, Thomas C., author
McGraw-Hill, 1978
Buku Teks
Cohen, David, author
Thomson Brooks/Cole, 2005
Buku Teks
Hoover, Stewart V., author
Addison-Wesley, 1990
Buku Teks
Keedy, Mervin L., author
Addison-Wesley, 1986
Buku Teks