Universitas Indonesia, 2006
UI - Skripsi (Membership)
Universitas Indonesia, 1999
UI - Skripsi (Membership)
Universitas Indonesia, 1990
UI - Skripsi (Membership)
Universitas Indonesia, 1991
UI - Skripsi (Membership)
Universitas Indonesia, 1995
UI - Skripsi (Membership)