Cambridge University Press, 2005
Buku Teks
Kriesberg, Louis., author
Rowman & Littlefield , 2012
Buku Teks
Iwan Santoso, author
2007
UI - Tesis (Membership)
Withers, Bill, author
American Management Association, 2007
eBooks
Batiffol, Henri
Librairie générale de droit et de jurisprudence, 1970
Buku Teks