Virtual Reality with Virtual Private Assistant Research: A Case on Amazon Sumerian. International Journal of Engineering and Computer Science, india, v. 10, n. 7, p. 25362–25364, 2021. DOI: 10.18535/ijecs/v10i7.4608. Disponível em: http://www.ijecs.in/index.php/ijecs/article/view/4608. Acesso em: 5 dec. 2025.