Marpaung, David Raja, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2004
UI - Skripsi (Membership)
Tim penulis, AAGN Ari Dwipayana ...[et al.]
Institute for research and empowerment, 2001
Buku Teks
Siahaan, Elisabeth I.P., author
2002
UI - Tesis (Membership)
Cut Nury Hikmah Sabry, author
Universitas Indonesia, 2013
UI - Skripsi (Membership)
Musthafa Abd. Rahman, author
Kompas, 2003
Buku Teks