edited by Anthony McGrew and Christopher Brook
Routledge, 1998
Buku Teks SO
Kojima, Kiyoshi
Croom Helm, 1977
Buku Teks
Mayall, James B. L.
Standard Publishers, 2009
Buku Teks SO
edited by Meredith Woo-Cumings and Michael Loriaux
Westview Press, 1993
Buku Teks SO
Salisbury, Harrison E.
Harper & Row , 1962
Buku Teks SO