S. Mansor, M. N. I. F. Azmi, and S. A. Ibrahim, “Smart and Intelligent Prayer System for Elderly Muslim with IoT”, ijie, vol. 16, no. 3, pp. 1–14, Apr. 2024, Accessed: Jul. 22, 2024. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/15804