Walker, E. Ronald, author
University of Chicago Press, 1947
Buku Teks
Seth, M.L., author
S. Chand, 1969
Buku Teks
edited by Marcel Boyer and Richard E. Kihlstrom
North-Holland Publishing, 1984
Buku Teks
Intriligator, Michael D., author
Prentice-Hall, 1971
Buku Teks
Intriligator, Michael D., author
Society for Industrial and Applied Mathematics, 2002
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