Mr.S. Karuppusamy, Monalisa Koley, N.Nagapavithra, V.Shanthidevi, and P.P.Shobana. 2021. “Pin Security Scheme Using Haptic Feedback”. International Journal of Intellectual Advancements and Research in Engineering Computations 7 (2):2306-13. https://doi.org/10.61096/ijiarec.v7.iss2.2019.2306-2313.