MWANSA MBULO; PENDA ANNIE. Theoretical and conceptual frame work for factors that lead to poor performance for learners with hearing impairment in the national examination at grade nine (9): A case of ChilesheChepela Special School and Musakanya Special Unit in Kasama and Mpika district. International Journal of Research in Informative Science Application & Techniques (IJRISAT), [S. l.], v. 2, n. 3, p. 11–22, 2022. DOI: 10.46828/ijrisat.v2i3.29. Disponível em: https://grpublication.com/index.php/ijrisat/article/view/29. Acesso em: 18 jan. 2025.