RANJBAR, Samira; MAGHARI, Ali Esmailzadeh. The Feasibility of Productivity Improvement Using the Approach of Virtual Economy. International Journal of Economics and Financial Issues, [S. l.], v. 7, n. 3, p. 371–376, 2017. Disponível em: https://econjournals.com/index.php/ijefi/article/view/4806. Acesso em: 22 nov. 2024.