Ganziro, Taranza T., author
Emerald, 2016
eBooks
Bureau of International Information Programs United States Department of State, 2004
Buku Teks
Ginsburg, Jane C., author
Edward Elgar Publishing, 2015
Buku Teks
[Edward Elgar, Universitas Indonesia], 2014
UI - Makalah dan Kertas Kerja
Farnell, John, author
Palgrave Macmillan, 2016
Buku Teks