Silitonga, Nova Fransiska
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2005
UI - Tesis (Membership)
by Michael B. Metzger ... [et al.]
Richard D. Irwin, 1989
Buku Teks
Rissandi Milarni
2016
UI - Skripsi (Membership)
Twomey, David P.
Thomson Learning, 2002
Buku Teks
by Thomas W. Dunfee [and others]
McGraw-Hill, 1996
Buku Teks