Artikel Jurnal
Tangerang : Senta Teknologi Polimer (STP), 2007,
Majalah, Jurnal, Buletin
Sianturi, Oliver L. P., author
Universitas Indonesia, 2004
UI - Tesis (Membership)
Madagaskar, author
Universitas Indonesia, 1993
UI - Tesis (Membership)
Siregar, Adella Hotnyda, author
Universitas Indonesia, 1994
UI - Tesis (Membership)