Universitas Indonesia, 1992
UI - Skripsi (Membership)
Siregar, Zofrullah, author
Universitas Indonesia, 1992
UI - Skripsi (Membership)
[Universitas Indonesia, ], 2007
UI - Skripsi (Membership)
Fatma, author
Universitas Indonesia, 2002
UI - Tesis Membership
Universitas Indonesia, 1990
UI - Skripsi (Membership)