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. Int. j. res. inf. sci. appl. tech. [Internet]. 2022 Feb. 12 [cited 2025 Jan. 18];2(3):11-22. Available from: https://grpublication.com/index.php/ijrisat/article/view/29