BAJEC, Patricija. Evolution of Traditional Outsourcing into Innovative Intelligent Outsourcing - Smartsourcing. Promet - Traffic&Transportation, [S. l.], v. 21, n. 2, p. 93–101, 2012. DOI: 10.7307/ptt.v21i2.215. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1495. Acesso em: 26 aug. 2025.