Nhan Minh, T.; The Trung, L.; Duc Hieu, T.; Thi Nga, H. A COMPARATIVE STUDY OF THREE TACTILE MAP PRINTING TECHNIQUES IN THE DESIGN OF EDUCATIONAL MATERIALS FOR VISUALLY IMPAIRED STUDENTS. HNUE Journal of Science: Educational Science 2025, 70 (6), 99-110. https://doi.org/10.18173/2354-1075.2025-0113.