Inquérito aos gastos turísticos Internacionais (IGTI): : 1º relatório de progresso
Preferences and trip expenditures - a conjoint analysis of visitors to Seoul, Korea / Yong Kun Suh, Leo McAvoy
Analysing determinants of visitor spending for the rural tourist market in North Portugal / Elisabeth Kastenholz
European Travel Monitor : ETC- Pool Report 2005 / European Travel Monitor, World Travel Monitor
Tourism as an International traded service : A guide for measuring arrivals and associated expenditures of non-residents