Educational travel : the overseas internship / Erik van 't Klooster ... [et al.]. - 2008. // Annals of Tourism Research : a Social Sciences Journal. Vol. 35 (2008), No. 3
van 't Klooster, Erik. Heritage, Tourism and Hospitality International Conference / Eric van 't Klooster. - 2015. // Anatolia : an international journal of tourism and hospitality research. Vol. 26 (2015), No. 2
Početak