Sumitro
1987
UI - Skripsi (Membership)
Universitas Indonesia, 1992
UI - Skripsi (Membership)
George Carqua
1986
UI - Skripsi (Membership)
Universitas Indonesia, 1992
UI - Skripsi (Membership)
Silalahi, Jetro
Universitas Indonesia, 1986
UI - Skripsi (Membership)