RUŽEVIČIUS, Juozas. Management Systems of the Quality of Studies. Ekonomika, [S. l.], v. 80, p. 51–69, 2007. DOI: 10.15388/Ekon.2007.17635. Disponível em: https://www.journals.vu.lt/ekonomika/article/view/17635.. Acesso em: 5 may. 2024.