Silalahi, MFR Tioria, author
1992
UI - Skripsi (Membership)
Newsom, Doug, author
Wadsworth and Cengage Learning, 2013
Buku Teks
Mila Purnama Sari, author
Universitas Indonesia, 2006
UI - Tesis (Membership)
Bernika Irnadianis Ifada, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2005
UI - Tesis (Membership)
Onong U. (Onong Uchjana) Effendy, author
Alumni, 1973
Buku Teks