HOSSAIN, Md. Munir; JAHID HAQUE, Md. Amlan; AABED, Abdullah Ai. An Investigation on Cell Phone Subscribers ofDhaka City, BangladeshAre they Happy and Loyal?. Independent Business Review, Dhaka, Bangladesh, v. 4, n. 2, p. 70–90, 2026. DOI: 10.67508/. Disponível em: https://ibr.iub.edu.bd/Journals/article/view/103. Acesso em: 21 sep. 2026.