ДУШКОВ, Љ. Planning of spatial development of tourism in the city of Valjevo. Hotel and Tourism Management, [S. l.], v. 4, n. 2, p. 91–102, 2016. Disponível em: https://www.htmanagementvb.com/index.php/HITM/article/view/97. Acesso em: 28 jun. 2025.