edited by Margit Kovacs
Ellis Horwood, 1992
Buku Teks
Mickelburgh, John
Profesional Books, 1979
Buku Teks
Ministry of Foreign Affairs, Japan, 1974
Buku Teks
Epstein, David G., author
West Publishing Company, 1976
Buku Teks
editor, Hoyt Gimlin
Congressional Quarterly, 1978
Buku Teks