Surbhi Khambalkar, Saurabh Netke, Tejas Misal, Prekshita Bhandakkar, Vicky Kohad, and Praful Somkuwar. “Piezo Electric Based Shoe Charger”. International Journal of Progressive Research in Science and Engineering 1, no. 9 (February 14, 2021): 8–11. Accessed July 22, 2024. https://journal.ijprse.com/index.php/ijprse/article/view/220.