Damanik, Kardi
1989
UI - Skripsi (Membership)
Soegiono
1989
UI - Skripsi (Membership)
Universitas Indonesia, 1985
UI - Skripsi (Membership)
Zamri Arzo
Universitas Indonesia, 1988
UI - Skripsi (Membership)
Universitas Indonesia, 1991
UI - Skripsi (Membership)