David Tanubrata, author
Universitas Indonesia, 2008
UI - Skripsi (Membership)
Tarigan, Ranny, author
Universitas Indonesia, 2000
UI - Skripsi (Membership)
Danuta, author
Universitas Indonesia, 2009
UI - Skripsi (Membership)
Shilvana, author
Universitas Indonesia, 2009
UI - Skripsi (Membership)
Artikel Jurnal