Jakarta : Cipta Adi Pustaka, 1991,
Buku Referensi
Jakarta : Cipta Adi Pustaka, 1991,
Buku Referensi
Maria Lamria, author
2007
UI - Tesis (Membership)
Knight, John F, author
Indonesia Publishing House, 2005
Buku Teks
Ivan Fransiskus, author
Universitas Indonesia, 2008
UI - Skripsi (Open)