Bin Dahari, Zainurin, Muhammad Sabbir Rahman, and S. M. Ferdous Azam. 2011. “Customer Satisfaction With Mobile Phone Operators: An Exploratory Study in Kuala Lumpur, Malaysia”. Indian Journal of Marketing 41 (5):39-47. https://indianjournalofcomputerscience.com/index.php/ijom/article/view/37668.