WHO, 1990
Buku Teks
KIRAIN Organise,
Majalah, Jurnal, Buletin
Bangkok Secretariat Association of Southeast Asian Institutions Chulalongkorn University 1957
Buku Teks
Organization of the Petroleum Exporting Countries (OPEC), 2007
Majalah, Jurnal, Buletin
Jakarta : Pusat Penelitian - Universitas Mercu Buana, 2006,
Majalah, Jurnal, Buletin