V S Karvande. “UNDERSTANDING SMARTPHONE SENSOR AND APP DATA FOR ENHANCING THE SECURITY OF SECRET QUESTIONS BASED AUTHENTICATION SYSTEM”. Open Access International Journal of Science and Engineering 3, no. 5 (May 28, 2018): 43–47. Accessed August 31, 2026. https://journals.mriindia.com/index.php/oaijse/article/view/2542.