HAMAKALI, H. An assessment of whether there is a need for a placement test at the University of Namibia Language Centre. International Journal of Social Sciences and Humanities Invention, [S. l.], v. 3, n. 12, 2016. Disponível em: https://valleyinternational.net/index.php/theijsshi/article/view/640. Acesso em: 22 dec. 2024.