Gallagher, Richard H.
Prentice-Hall, 1975
Buku Teks
Hollig, Klaus
Society for Industrial and Applied Mathematics, 2003
eBooks
John Wiley & Sons, 2002
Buku Teks
Weaver, William
Eresco, 1989
Buku Teks
edited by R. Glowinski, E. Y. Rodin, O. C. Zienkiewicz
John Wiley & Sons, 1979
Buku Teks