Besov, Oleg V.
V. H. Winston & Sons , 1978 dan 1979
Buku Teks
Cheney, E. Ward, author
Society for Industrial and Applied Mathematics, 1986
eBooks
Wunsch, A. David
Addison-Wesley Pub.Co., 1994
Buku Teks
Paliouras, John D.
McMillan Publishing, 1975
Buku Teks
Shapiro, Harold S.
Wiley-Interscience, 1992
Buku Teks