O`Dell, Jerry W., author
TAB Books, 1984
Buku Teks
Snover, Stephen L., author
Prentice-Hall, 1982
Buku Teks
Grogono, Peter, author
Addison-Wesley, 1982
Buku Teks
Watkins, R. P., author
John Wiley & Sons, 1974
Buku Teks
Gendell, Julien, author
West Publisihing, 1993
Buku Teks