Rajeswari, S., Yarlagadda Srinivasulu, and S. Thiyagarajan. “Service Quality in the Telecommunication Industry: Analysis With Special Reference to DSL Services”. Indian Journal of Marketing 46, no. 2 (February 1, 2016): 7–21. Accessed October 9, 2025. https://indianjournalofmarketing.com/index.php/ijom/article/view/87245.