edited by John D. Greenwood
Cambridge University Press , 1991
Buku Teks
edited by William Bechtel and George Graham
Blackwell, 1999
Buku Teks
Edited by Robert J. Stainton
Blackwell Publishing, 2006
Buku Teks
Goldman, Alvin I., author
MIT Press, 1993
Buku Teks
Cain, M.J., author
Polity, 2016
Buku Teks