Speyer, Jason Lee, author
Society for Industrial and Applied Mathematics, 2010
eBooks
Schuman, David
Macmillan Publishing Company, 1976
Buku Teks
Przeworski, Adam, author
Cambridge, 2003
Buku Teks
Schuman, David
Macmillan, 1976
Buku Teks
Greaves, H. R. G.
George Allen and Unwin, 1958
Buku Teks