Chatbots and Virtual Assistants: Revolutionizing Customer Service and Engagement in Marketing. Journal of Informatics Education and Research, [S. l.], v. 4, n. 3, 2024. DOI: 10.52783/jier.v4i3.1550. Disponível em: https://jier.org/index.php/journal/article/view/1550. Acesso em: 15 apr. 2026.