Bear, Gerg
Legend, 1992
Buku Teks
Harvey, Greg
IDG Books, 1994
Buku Teks
Aumann, Francis R.
Thomas Y. Crowell Company, 1956
Buku Teks
Simon, Yves R.
The University of Chicago Press, 1951
Buku Teks
Simon, Yves R.
University of Chicago Press, 1961
Buku Teks