ACHEAMPONG , D. O. Perception of the difficulties of international postgraduate students writing research proposal . International Journal of Humanities and Innovation (IJHI), [S. l.], v. 4, n. 1, p. 17–24, 2021. DOI: 10.33750/ijhi.v4i1.103. Disponível em: http://humanistudies.com/ijhi/article/view/103. Acesso em: 13 sep. 2025.