Vummadi, Jayapal R, et al. “Smart HR for Smart Enterprises: A Machine Learning-Based Approach to Payroll Automation and Time Optimization”. International Journal of Artificial Intelligence, Data Science, and Machine Learning, vol. 6, no. 3, Aug. 2025, pp. 80-89, https://doi.org/10.63282/3050-9262.IJAIDSML-V6I3P113.