Artikel Jurnal
Rawal, Radhakishan
Wolters Kluwer, Law & Business, 2014
Buku Teks
Barlett, Cristopher A.
Irwin/McGraw-Hill, 2004
Buku Teks
Ammar
Universitas Indonesia, 2013
UI - Tesis Membership
Patterson, George N.
International Studies Group, 1966.
Buku Teks