Rosen, Kenneth H., author
McGraw-Hill, 1999
Buku Teks
Townsend, Michael, author
The Benjamin Cumming, 1987
Buku Teks
Anthony, Martin, author
Society for Industrial and Applied Mathematics, 2001
eBooks
Ince, D.C., author
Clarendon Press, 1988
Buku Teks
Arnold, A., author
Prentice-Hall, 1996
Buku Teks