1.		Social integration : 1995 / Helios Data Publicação: 1995 Col.autor: Programa Helios
2.		Predicting changes in Hong Kong's hotel industry given the change in sovereignty from Britain to China in 1997 / Jacqueline Lloyd, Joseph M. la Lopa, Carl G. Braunlich Autor: Lloyd, Jacqueline Coautor: ; Lopa, Joseph M. la Braunlich, Carl G.
3.		Getting away from it all: Exploring freedom in tourism / Robert Caruana, Andrew Crane Autor: Caruana, Robert Coautor: ; Crane, Andrew