1.		Inbound tourism tourism to the Middle East and North Africa / World Tourism Organization Data Publicação: 2003 Col.autor: OMT
2.		Tourism satellite account (TSA) : implementation project / World Tourism Organization Data Publicação: 20003 Col.autor: OMT
3.		Coopération et partenariats en tourisme: une perspective mondiale / Organisation Mondiale du Tourisme Data Publicação: 2003 Col.autor: OMT
4.		Measuring visitor expenditure for inbound tourism : International experience. Model border survey: WTO proposal / World Tourism Organization Data Publicação: 2003 Col.autor: OMT