Kalimuthu, Sivakumar, Thinagaran Perumal, Erzam Marlisah, Razali Yaakob, Vidhyasagar BS, and Noor Hafizah Ismail. 2024. “HUMAN ACTIVITY RECOGNITION BASED ON DEVICE-FREE WI-FI SENSING: A COMPREHENSIVE REVIEW”. Malaysian Journal of Computer Science 37 (3):253-70. https://jml.um.edu.my/index.php/MJCS/article/view/56465.