ICCA
Associação Internacional de Congressos e Convenções (International Congress & Convention Association)
www.iccaworld.com/

IH&RA
International Hotels and Restaurant Association
www.ih-ra.com

WTO
Organização Mundial do Comércio (World Trade Organization)
www.wto.org/

OMT
Organização Mundial do Turismo (World Tourism Organization)
www.unwto.org/index.php

OMT
Organização Mundial de Turismo
www.world-tourism.org

AIPC
Association of Congress Centres
www.aipc.org/