Packer, Arnold H., author
MIT Press, 1972
Buku Teks
Johansen, Leif, author
North-Holland, 1974
Buku Teks
edited by Karl Shell
MIT Press, 1967
Buku Teks
Benavie, Arthur, author
Prentice-Hall, 1972
Buku Teks
Gil Aluja, Jaime, author
Springer, 2012
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