Universitas Indonesia, 2001
UI - Skripsi (Membership)
Dewi Muliana, author
2007
UI - Tesis (Membership)
Artikel Jurnal
Sitinjak, Robert Parlindungan, author
Universitas Indonesia, 1991
UI - Skripsi (Membership)
Universitas Indonesia, 1984
UI - Skripsi (Membership)