Burgu Shravan Kumar, et al. “TRIFACTOR AI: AN OFFLINE MULTI-FACTOR BIOMETRIC AUTHENTICATION FRAMEWORK INTEGRATING ADAPTIVE LIVENESS AND BEHAVIORAL VERIFICATION”. Journal of Intelligent Machine Learning and IoT Enabled Applications, vol. 2, no. 1, Sept. 2026, pp. 87-111, https://jiml-iea.com/index.php/ml/article/view/94.