Bonn, Mark A.. A comparison of three economic impact models for applied hospitality and tourism research / Mark A. Bonn, Julie Harrington. - 2008. // Tourism economics : the business and finance of tourism and recreation. Vol. 14 (2008), No. 4
de Oliveira Santos, Glauber Eduardo. Modelos teoricos aplicados al turismo / Glauber Eduardo de Oliveira Santos. - 2007. // Estudios y perspectivas en turismo. Vol. 16 (2007), No. 1