Buchanan, George R., author
McGraw-Hill, 1995
Buku Teks
edited by R. Glowinski, E. Y. Rodin, O. C. Zienkiewicz
John Wiley & Sons, 1979
Buku Teks
Hinton, E., author
Pineridge Press, 1979
Buku Teks
Reddy, J. N., author
McGraw-Hill, 1984
Buku Teks
Desai, Chandrakant S., author
Prentice-Hall, 1979
Buku Teks