1.		Greenbook : Agritourism multifunctional agriculture / GITUR- Grupo de Investigação em Turismo-Instituto Politécnico de Leiria Data Publicação: 2013 Col.autor: Portugal. Instituto Politécnico de Leiria
2.		Vacation behaviour: frequency, destination choice and expenditures / Ruben van Loon and Jan Rouwendal Autor: Loon, Ruben van Coautor: ; Rouwendal, Jan
3.		Understanding visitor’s motivation at sites of death and disaster: the case of former transit camp Westerbork, the Netherlands / Rami Khalil Isaac, Erdinç Çakmak Autor: Isaac, Rami Khalil Data Publicação: 2013 Coautor: Çakmak, Erdinç
4.		Foreshadowing Tourism: Looking for modern and obsolete features – or some missing link – in early modern travel behavior (1675–1750) / Gerrit Verhoeven Autor: Verhoeven, Gerrit