Buku Teks
McNair, Lord, author
Clarendon Press, 1961
Buku Teks
edited by Christian J. Tams, Antonios Tzanakopoulos, Andreas Zimmermann ; assistant editor, Athene E. Richford.
UK Edward Elga, 2014
Buku Teks
Kolb, Robert, author
Edward Elgar Publishing, 2016
Buku Teks
Shuhsi, Hsu
The Chinese Social & Politic Science Review, 1932
Buku Teks