Artikel Jurnal
Simanungkalit, Janry Haposan U.P., author
Directorate of Personnel Planning and Formation of State Personnel Agency, Jakarta, 2012
Artikel Jurnal
editor Peter de Haan and Yvonne van Hees
Netherlands Development Cooperation Information Department, 1996
Buku Teks
State University of New York Press, 2006
Buku Teks
Mari Elka Pangestu, author
Centre for Strategic and International Studies, 1996
Buku Teks