KANAGARAJU, D.; KARTHIKEYAN, R. CUSTOMER SATISFACTION SELECTED CELLULAR SERVICES PROVIDERS IN VILLUPURAM DISTRICT. The journal of contemporary issues in business and government, [S. l.], v. 27, n. 5, p. 1243–1254, 2021. Disponível em: https://cibgp.com/au/index.php/1323-6903/article/view/2056. Acesso em: 17 jul. 2024.