STOJANOVIĆ, D.; STANISAVLJEVIĆ, N.; JOVIČIĆ, E. . Digital marketing techniques for promotion of "Infrastructure of Serbian Railways". E-business technologies conference proceedings, [S. l.], v. 1, n. 1, p. 84–88, 2021. Disponível em: https://ebt.rs/journals/index.php/conf-proc/article/view/91. Acesso em: 5 may. 2024.