1.		The Meetings, Incentives, Conferences and Exhibitions Industry / Adele Ladkin e Julie Spiler Autor: Ladkin, Adele; Spiller, Julie Data Publicação: 2000 Col.autor: Travel & Tourism Intelligence
2.		The World's Leading Outbound Markets / Christine Smith e Paul Jenner Autor: Smith, Christine; Jenner, Paul Data Publicação: 2000 Col.autor: Travel & Tourism Intelligence