ABDULLAH, L. A. H. . Common Mistakes Committed and Challenges Faced in Research Proposal Writing by University of Aden Postgraduate Students. Journal of Social Studies, [S. l.], v. 29, n. 1, p. 18–30, 2023. DOI: 10.20428/jss.v29i1.2070. Disponível em: https://journals.ust.edu/index.php/JSS/article/view/2070. Acesso em: 27 nov. 2024.