FRANCIS SUDHAKAR, K.; NUTAN, Lydia. An Objective Study of Customer Behaviour in BPL Mobile Cellular Ltd. Indian Journal of Marketing, [S. l.], v. 35, n. 5, 2005. Disponível em: https://www.indianjournalofmarketing.com/index.php/ijom/article/view/34188. Acesso em: 21 jan. 2026.