Sihombing, Tornagogo
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
UI - Disertasi Membership
Harry W. Richardson, Chang-Hee Christine Bae, Sang-Chuel Choe, editor
Edward Elgar, 2011
Buku Teks SO
Young, Greg
Ashgate, 2008
Buku Teks SO
Gould, William B., IV
MIT Press, 1982
Buku Teks
edited by Simon Walker
CP Books, [Date of publication not identified]
Buku Teks SO