OH, Sei-Youen, and . . “A Study on Preventive System Against Recidivism of Retaliatory Crime Using IOT-Based Smart Watch”. International Journal of Engineering and Technology 7, no. 3.24 (August 10, 2018): 562–565. Accessed April 28, 2025. https://sciencepubco.com/index.php/IJET/article/view/22814.