ČIEFOVÁ, Michaela; GODA, Natália. Good Country Index – V4 Countries Comparison. European Journal of Multidisciplinary Studies, [S.l.], v. 4, n. 3, p. 13-19, sep. 2019. ISSN 2414-8385. Available at: <http://journals.euser.org/index.php/ejms/article/view/4477>. Date accessed: 22 jan. 2020.