Tambun, Saul M. Pardamean, author
Universitas Indonesia, 1998
UI - Tesis (Membership)
Universitas Indonesia, 2003
UI - Skripsi (Membership)
Silitonga, Desmon Roy B., author
Universitas Indonesia, 2004
UI - Skripsi (Membership)
Maria Dewijani, author
1998
UI - Tesis (Membership)
Rajagukguk, Juniastel, author
2007
UI - Tesis (Membership)