Shier, Douglas R.
Oxford University Press, 1991
Buku Teks
Domosi, Pal
Society for Industrial and Applied Mathematics, 2005
eBooks
Smith, Jonathan D.H.
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Pinter, Charles C.
McGraw-Hill, 1982
Buku Teks
Narayan, Shanti
S. Chand & Company, 1979
Buku Teks