A. A. Mukred, J. ., A. Rahim, R. ., Jian Bin, P., Abdullah, Q. ., Alduais, N., Al-Fadhali, N. ., & Y.I, A. . (2020). Outdoor Elderly Tracking System Using Line Tracking Mobile Robot with Bluetooth Communication System. Evolution in Electrical and Electronic Engineering, 1(1), 378–387. Retrieved from https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/289