Yakubu, A. ., & Joseph, T. . (2026). Effects of Manual Communication Method on Listening Proficiency of Students with Hearing Impairment in Special Schools in Lafia Metropolis, Nasarawa State, Nigeria. Global Academy of Multidisciplinary Studies, 2(3), 215–224. https://doi.org/10.35912/gams.v2i3.4110