Reynolds, Charles, author
Martin Robertson, 1973
Buku Teks
Gramedia Pustaka Utama, 1992
Buku Teks
Yang, Seung-Yoon, 1946-, author
Gadjah Mada University Press, 2004
Buku Teks
Attlee, Earl C.R.
Allied Publisher, 1961
Buku Teks
edited by Coral Bell
Australian National University Press, 1980
Buku Teks