KAZIMBU, Caroline; PIETERS, Wesley R. Customer Service on the Menu: Work Engagement of Waiters in Windhoek. Namibia Journal of Managerial Sciences, [S. l.], v. 3, n. 1, p. 69–84, 2020. Disponível em: https://journals.ium.edu.na/index.php/njms/article/view/62. Acesso em: 17 may. 2025.