REN, Y.; XIAO, D. The Pitfalls Of Multiple Dummy Variables In A Regression. Review of Business Information Systems (RBIS), [S. l.], v. 16, n. 4, p. 169–176, 2012. DOI: 10.19030/rbis.v16i4.7436. Disponível em: https://clutejournals.com/index.php/RBIS/article/view/7436. Acesso em: 18 jul. 2024.