Chandoevwit, worawan (2004), Thailand’s cross border economy, a case study of sa kaeoand chiangrai; Thailand development resources institute.
Davidson, R. (1994) Business Travel. first edition. London: Pitman Publishing.
Donald E. Hawkins, Shaun Mann (2007), The World Bank’s Role in Tourism Development, Annals of Tourism Research, Vol. 34, No. 2, pp. 348–363.
Edgell, D.L, Allen, M.D, Smith, G & Swanson, J.R (2008), Tourism as a commercial and economic activity, Journal of Tourism Policy and Planning, yesterday, today and tomorrow, 97- 139.
Figueiredo, E. and Raschi, A. (2013): Trekking out of the crisis: is there a role for rural tourism?, Working group number: 17, XXV ESRS Congress, Florence, Italy, 29 July- 1 August, 2013. http://www.florenceesrs2013.com
Ilbery, B. and Saxenaa, G (2011), Integrated Rural Tourism in the English–Welsh Cross-border Region: An Analysis of Strategic, Administrative and Personal Challenges, Regional Studies, 45(8):1139-1155.
Marques, J & Santos, N (2017), Business Tourism Development: a Portuguese Perspective, Journal of Cuadernos de Turismo, 40, 423- 437.
Nunes, P. A (2002), Measuring the economic benefits of protecting the Parque Natural do Sudoeste Alentejanoe Costa Vicentina from commercial tourism development: results from a contingent valuation survey. Portuguese Economic Journal, 1(1), 71-87.
Ouariti, O. Z. & Hamri, H. M., 2014, Business tourism towards improving the tourism offer in Morocco: Case of seaside town of Agadir, IJBTS International Journal of Business Tourism and Applied Sciences, Vol. 2, No. 2, PP. 8-16.
Pamucar, D & Cirovic, G (2015), The selection of transport and handling resources in logistics centers using Multi-Attributive Border Approximation area Comparison (MABAC), Expert Systems with Applications 42, 3016–3028.
Pinho, M & Marques, J (2019), Business tourism in Porto: an empirical investigation of its potentialities and development challenges, International Journal of Tourism Cities. 1 – 11.
Szalontai, Lajos, (2011), Introduction of the eknowbridge project and its results, The Department of Social Geography and Regional Development Planning Humanitarian Policy Group Overseas Development Institute 111 Westminster Bridge Road London of the University of Debrecen & Institute for Euroregional Studies.
Timothy, D.J. and Tosun, C. (2005). Tourist’s perception of the Canada-USA border as a barrier to tourism at the International Peace Garden. Journal of Tourism Management, 24: 411-421.