Muhammad Arif Hazmi Bin Abd Aziz, “Robotic Device for Cleaning and Monitoring Photovoltaic Panel Arrays”, peat, vol. 2, no. 2, pp. 563–575, Dec. 2021, Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/1041