edited by Avigail Eisenberg and Jeff Spenner-Halev
Camberidge University Press , 2005
Buku Teks SO
Selby, David
Cambridge University Press, 1988
Buku Teks
Unesco, 1970
Buku Teks SO
edited by Alice H. Henkin
Aspen Institute for Humanistic Studies, 1979
Buku Teks SO
Nino, Carlos Santiago
Oxford University Press, 1993
Buku Teks SO