Amani Emmanuel, and Nabahani Bakari. “Development of Radio Waves Based Mobile Phone Charger”. International Journal of Engineering Research and Advanced Technology - IJERAT (ISSN: 2454-6135) 4, no. 11 (November 2, 2018): 21-27. Accessed November 24, 2020. https://ijerat.com/index.php/ijerat/article/view/367.