edited by Reiner Horst, Panos M. Pardalos
Kluwer Academic Publishers, 1995
Buku Referensi
Pierre, Donald A., author
Wiley, 1969
Buku Teks
Gregory, John, author
Van Nostrand Reinhold, 1992
Buku Teks
Denn, Morton M.
McGraw-Hill, 1969
Buku Teks
Nicholson, T.A.J., author
Aldine, 1971
Buku Teks