Sumantri
Program Pascasarjana Universitas Indonesia, 1999
UI - Tesis (Membership)
Lubis, Ismet
1995
UI - Tesis (Membership)
Siboro, Jules
Universitas Indonesia, 1998
UI - Tesis (Membership)
Universitas Indonesia, 1985
UI - Skripsi (Membership)
Sembiring, Petrus
Program Pascasarjana Universitas Indonesia, 2006
UI - Tesis (Membership)