http://www.almotamar.net صحيفة إلكترونية يومية تصدر عن حزب المؤتمر الشعبي العام (اليمن) http://www.almotamar.net/2521.htm 2007-05-05 Economic, demographic, social and environmental sustainability have to be considered by the Middle East's tourism players when formulating long-term industry policy, according to a pioneering study carried out by Global Futures and Foresight (GFF), an international strategic futures think-tank.