Simbolon, Manotar Freedom, author
Universitas Indonesia, 2009
UI - Tesis (Membership)
Tampubolon, Maruli C., author
Universitas Indonesia, 2012
UI - Tesis (Open)
Sitorus, Bobby Robson, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Tesis (Membership)
Flora Severine Febriana, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2013
UI - Skripsi (Membership)
Sulistyoweni Widanarko, author
Fakultas Teknik Universitas Indonesia, 1991
UI - Laporan Penelitian