Dr.S.Hemalatha, R.Meera, L.Nandhini, and B.Vishnu Priya. “Mobile Application Development Aimed at Assisting Automated Services to the Visually Impaired People Using IOT”. International Journal of Advance Research in Engineering, Science & Technology, vol. 5, no. 3, Mar. 2018, pp. 524-8, https://ijarest.org/index.php/ijarest/article/view/1243.