BOKOR, Zoltán. Cost Calculation Model for Logistics Service Providers. Promet - Traffic&Transportation, [S. l.], v. 24, n. 6, p. 515–524, 2012. DOI: 10.7307/ptt.v24i6.1198. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2369. Acesso em: 26 aug. 2025.