Szita Tóthné, K. ., and E. . Siposné Nándori. “A Regional Evaluation of Sustainability With Special Regard to Social Aspect”. Theory, Methodology, Practice – Review of Business and Management, vol. 5, no. 01, May 2010, pp. 75-80, https://ojs.uni-miskolc.hu/index.php/tmp/article/view/1351.