Steinberg, David Joel
Westview Press, 1994
Buku Teks
Maruya, Saiichi
Kodansha International, 1986
Buku Teks
Saad, Ibrahim
ISEAS, 1911
Buku Teks
Carroll, R.W.
Academic Press, 1976
Buku Teks
edited by Michael P. Mortell, Robert E. O'Malley, Alexei Pokrovskii, Vladimir Sobolev
Society for Industrial and Applied Mathematics, 2005
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