MABILA, T. Postgraduate students’ understanding of mixed methods research design at the proposal stage. South African Journal of Higher Education, [S. l.], v. 31, n. 5, p. 136–153, 2017. DOI: 10.20853/31-5-1498. Disponível em: https://www.journals.ac.za/sajhe/article/view/1498. Acesso em: 7 oct. 2025.