Tanwar P. Use of Tactile Diagrams in Teaching Science to Visually Impaired Learners at the Upper Primary Level. DCIDJ [Internet]. 2019 May 14 [cited 2025 Mar. 12];29(4):109-16. Available from: https://dcidj.uog.edu.et/index.php/up-j-dcbrid/article/view/316