Silaban, Rekson, author
Pustaka Sinar Harapan, 2009
Buku Teks
Yunier Salim, author
Universitas Indonesia, 2001
UI - Tesis (Membership)
The Indonesian Institute Center for Public Policy Research, 2010
Buku Teks
Suryo Utomo, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2003
UI - Skripsi (Membership)
Kompas, 2007
Buku Teks