STEPANOVA, M. Comprehensive quality assessment in higher education. English Studies at NBU, [S. l.], v. 2, n. 2, p. 77–88, 2016. DOI: 10.33919/esnbu.16.2.1. Disponível em: https://ojs.nbu.bg/index.php/ESNBU/article/view/33. Acesso em: 18 may. 2024.