Mihály, N., and K. Tari. “Methodological Opportunities for Improving the Quality of Higher Education Institutions”. ENTRENOVA - ENTerprise REsearch InNOVAtion, vol. 2, no. 1, Oct. 2016, pp. 200-7, https://hrcak.srce.hr/ojs/index.php/entrenova/article/view/14213.