Universitas Indonesia, 2003
UI - Skripsi (Membership)
A. Sularso, author
Universitas Indonesia, 1995
UI - Tesis (Membership)
Harahap, Yahdil Abdi, author
Universitas Indonesia, 2002
UI - Skripsi (Membership)
Universitas Indonesia, 2003
UI - Skripsi (Membership)
Universitas Indonesia, 1999
UI - Skripsi (Membership)