Blanchard, Paul, author
Brooks/Cole, 1996
Buku Teks
Ross, Shepley L., author
McGraw-Hill, 1984
Buku Teks
Ross, Shepley L., author
Xerox College Publishing, 1964
Buku Teks
Campbell, Stephen L., author
Wadsworth, 1990
Buku Teks
Birkhoff, Garrett, author
John Wiley & Sons, 1978
Buku Teks