Silaban, Maruli T., author
Universitas Indonesia, 2007
UI - Skripsi (Membership)
Eka Jaya, 2004
Buku Teks
Artikel Jurnal
Farida Gurmiyati, author
Universitas Indonesia, 2007
UI - Tesis (Membership)
Natasha Yuristyowati Pandaningrum, author
Universitas Indonesia, 2006
UI - Tesis (Membership)