Cambridge University Press, 2018
eBooks
United Nations
United Nations, 2002
Buku Teks
edited by Lyuba Zarsky
Earthscan, 2005
Buku Teks
Bonanomi, Elisabeth Burgi, author
Edward Elgar Publishing, 2015
Buku Teks
Weber, Ludwig
Wolters Kluwer, 2007
Buku Teks