The Salesperson with a Speech Impediment: An Objective Research and Analysis on the Importance of Clarity, Structure and Logic of Arguments. European Journal of Marketing and Economics, [S. l.], v. 2, n. 1, p. 21–31, 2019. DOI: 10.26417/ejme.v2i1.p21-31. Disponível em: https://revistia.com/index.php/ejme/article/view/1221. Acesso em: 10 jan. 2026.