Wang, James C.F., author
Prentice-Hall, 1985
Buku Teks
Milner, Andrew
Routledge, 2002
Buku Teks
Kymlicka, Will, author
Clarendon Press, 1990
Buku Teks
Preiss, Julian, author
Routledge, 2013
Buku Teks
Maria C.W. Peeters, Jan de Jonge and Toon W. Taris, editors
Wiley-Blackwell, 2014
Buku Teks