Examining the Effectiveness of Electricity Billing System against the Mobile Phone Billing System in Active Mining Rural Communities in the Western Region of Ghana. Global Journals of Research in Engineering, [S. l.], v. 14, n. F5, p. 39–44, 2014. Disponível em: https://testing.engineeringresearch.org/index.php/GJRE/article/view/1116. Acesso em: 6 jun. 2026.