Wiwin Windihastuty, et al. “Classification Methods in Sentiment Analysis of Customers Statisfaction As a Services Improvement Strategy ”. Proceeding of the International Conference on Management, Entrepreneurship, and Business, vol. 1, no. 1, Dec. 2024, pp. 228-31, https://prosiding.arimbi.or.id/index.php/ICMEB/article/view/74.