Raed Abdulla, Adeniran Mayokun Samson, R.Dhakshyani,. “IOT Based Sustainable Wallet Tracking System”. International Journal of Advanced Science and Technology 29, no. 1 (January 24, 2020): 1301 - 1310. Accessed April 26, 2024. http://sersc.org/journals/index.php/IJAST/article/view/3695.