P.Palpandian, Harish.P, Naveen.K, Vasanthraj.M, Vijayraman.R (2020) “Blind Stick Using Ultrasonic”, International Journal of Advanced Science and Technology, 29(7), pp. 168 - 173. Available at: http://sersc.org/journals/index.php/IJAST/article/view/13202 (Accessed: 6May2024).