Siahaan, Sihar S., author
Universitas Indonesia, 1997
UI - Skripsi (Membership)
Universitas Indonesia, 2001
UI - Skripsi (Membership)
Universitas Indonesia, 1997
UI - Skripsi (Membership)
Aprianti Kartika, author
Universitas Indonesia, 2015
UI - Tesis (Membership)
Arifin Tjitranoer, author
2005
UI - Tesis (Membership)