Off-Grid mobile phone charging systems for rural energy needs. ITEGAM-JETIA, [S. l.], v. 8, n. 38, p. 37–44, 2022. DOI: 10.5935/jetia.v8i38.842. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/842. Acesso em: 22 oct. 2026.