Lloyd, G.E.R.
Cambridge University Press , 1991
Buku Teks
Brecht, Arnold, author
Princenton University Press, 1968
Buku Teks
Gower, Barry
Routledge, 1997
Buku Teks
edited by F.C. Bartlett
Kegan Paul, Trench, 1946
Buku Teks
Vogel, Curtis R., author
Society for Industrial and Applied Mathematics, 2002
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