Entwicklung und Zusammenarbeit,
Majalah, Jurnal, Buletin
Dac Hammarskjold foundation,
Majalah, Jurnal, Buletin
Harriss, John, author
Left world, 2001
Buku Teks
Edited by: Howard J. Wiarda
Thomson, 2000
Buku Teks
School of History, Politics and Strategic Studies. Faculty of Social Science and Humanities, University Kebangsanan Malaysia, 2004
Majalah, Jurnal, Buletin