ALI, Qutaiba I. Design & Implementation of a Mobile Phone Charging System Based on Solar Energy Harvesting. Iraqi Journal for Electrical and Electronic Engineering, [S. l.], v. 7, n. 1, p. 69–72, 2011. DOI: 10.37917/ijeee.7.1.13. Disponível em: https://ijeee.edu.iq/ijeee/article/view/155. Acesso em: 8 dec. 2025.