Ettedgui, Peter
Focal Press, 1999
Buku Teks
Raynald Santika, author
2018
UI - Skripsi (Membership)
Pasaribu, Tito, author
2013
UI - Tesis (Membership)
Grandstaff, Russell J., author
National Textbook Company, 1990
Buku Teks
Sindy Arlitha, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2018
UI - Tugas Akhir