Islam, Tamanna, Sadia Rahman, and Nazmun Nahar. “Factors Affecting Customer Satisfaction in 3G Service”. American Scientific Research Journal for Engineering, Technology, and Sciences 14, no. 3 (December 11, 2015): 202–217. Accessed September 17, 2025. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/1186.