Sianturi, Firnando, author
Universitas Indonesia, 2004
UI - Skripsi (Membership)
Universitas Indonesia, 2003
UI - Tugas Akhir
Universitas Indonesia, 1994
UI - Skripsi (Membership)
Enny Utami Wilyani, author
Universitas Indonesia, 1998
UI - Skripsi (Membership)
Donna Meyer, author
Universitas Indonesia, 2007
UI - Skripsi (Membership)