Lian HS, Safii NS, Mohd Raus N. Development of Physical Activity Pyramid in Braille for Visually Impaired Adults. j. Quran. Sn. Edtn. Spc. Nd. [Internet]. 2018Jun.1 [cited 2024May18];2(1):9-17. Available from: https://jqss.usim.edu.my/index.php/jqss/article/view/9