Bhattacharya, P.B., author
Cambridge University Press, 1986
Buku Teks
Gallian, Joseph A., author
D.C. Heath, 1990
Buku Teks
Hillman, Abraham P.
PW Publishing Company, 1994
Buku Teks
Durbin, John R., author
John Wiley & Sons, 1979
Buku Teks
Whitesitt, J. Eldon, author
Addison-Wesley, 1972
Buku Teks