Silalahi, Ferdinand, author
Gramedia Pustaka Utama, 1997
Buku Teks
Herman Darmawi, author
Bumi Aksara, 2008
Buku Teks
Nadief Kaelani, author
Prima Pundi Redana, 2010
Buku Teks
Saragi, Mulak T., author
Universitas Indonesia, 1998
UI - Tesis (Membership)
A. Abbas Salim, author
RajaGrafindo Persada, 2007
Buku Teks