Efenedo, G. I., A. O. Okpare, and O. M. Efenedo. “The Study and Analysis of Cell Phone Charging Modules in Nigeria”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 20, no. 3, Sept. 2024, pp. 571-80, https://azojete.com.ng/index.php/azojete/article/view/936.