Stasa, frank L
Holt, rinehatd and Winston, 1985
Buku Teks
Segerlind, Larry J., author
John Wiley & Sons, 1984
Buku Teks
Burnett, David S., author
Addison-Wesley, 1987
Buku Teks
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