Universitas Indonesia, 1991
UI - Skripsi (Membership)
Universitas Indonesia, 1997
UI - Skripsi (Membership)
Universitas Indonesia, 2002
UI - Skripsi (Membership)
Gatot Subagio, author
Universitas Indonesia, 1989
UI - Skripsi (Membership)
Nelli Herlina, author
1998
UI - Tesis (Membership)