Fahad, M Shamiul, M Muwyid Uzzaman Khan, and K Siddique-e Rabbani. 2013. “A Novel Mobility Aid for the Blind through Ultrasound Pulsed Echo Modulated Nerve Stimulation”. Bangladesh Journal of Medical Physics 4 (1):87-94. https://doi.org/10.3329/bjmp.v4i1.14692.