Sa’adu, L., Y. Yusuf, I. Abdullahi, and A. B. Isah. “Design, Construction and Evaluation of a Potable Dc-Dc Handset Charger”. International Journal of Science for Global Sustainability 10, no. 1 (March 31, 2024): 263–269. Accessed April 29, 2026. https://www.fugus-ijsgs.com.ng/index.php/ijsgs/article/view/629.