Universitas Indonesia, 1983
UI - Skripsi (Membership)
Universitas Indonesia, 1984
UI - Skripsi (Membership)
Universitas Indonesia, 1985
UI - Skripsi (Membership)
Universitas Indonesia, 1985
UI - Skripsi (Membership)
Universitas Indonesia, 1983
UI - Skripsi (Membership)