Sak, Kwai Yang, and Ahmad Najmuddin Ibrahim. “Field Study of Low-Energy Long-Distance Wireless Communication for IoT Application in Remote Areas”. Mekatronika: Journal of Intelligent Manufacturing and Mechatronics 2, no. 1 (June 9, 2020): 52–62. Accessed May 5, 2024. https://journal.ump.edu.my/mekatronika/article/view/6731.