Academic Press, 1983
Buku Teks
Gould, Ronald
The Benjamin Cumming , 1988
Buku Teks
edited by J.A. Bondy, U.S. Murty
Academic Press, 1979
Buku Teks
McKee, Terry A.
Society for Industrial and Applied Mathematics, 1999
eBooks
Hsu, Lih-Hsing
CRC Press, Taylor & Francis Group, 2009
Buku Teks