Kündüm, Doğukan, Zeynep Hilal Kilimci, Mitat Uysal, and Ozan Uysal. “Evaluation of Customer Satisfaction about Telecom Operators in Turkey by Analyzing Sentiments of Customers through Twitter”. Data Science and Applications 3, no. 2 (December 31, 2020): 15-20. Accessed June 24, 2021. http://jdatasci.com/index.php/jdatasci/article/view/43.