Tsichritzis, Dionysios C., author
Academic Press, 1977
Buku Teks
Cardenas, Alfonso F., author
Allyn and Bacon, 1979
Buku Teks
Date, C.J., author
North Holland, 1975
Buku Teks
Lyon, John K., author
John Wiley & Sons, 1971
Buku Teks
edited by Auerbach Pub. Inc.
Prentice-Hall, 1981
Buku Teks