JARDAS ANTONIĆ, J. Data envelopment analysis in improving security level in local government units. Balkans Journal of Emerging Trends in Social Sciences, Belgrade, Serbia, v. 1, n. 1, p. 59–69, 2018. DOI: 10.31410/Balkans.JETSS.2018.1.1.59-69. Disponível em: https://balkans-jetss.org/index.php/index_bjetss/article/view/11. Acesso em: 27 apr. 2025.