Dina, Nasa Zata, Riky Tri Yunardi, and Aji Akbar Firdaus. “Utilizing Text Mining and Feature-Sentiment-Pairs to Support Data-Driven Design Automation Massive Open Online Course”. International Journal of Emerging Technologies in Learning (iJET) 16, no. 01 (January 12, 2021): pp. 134–151. Accessed April 28, 2024. https://online-journals.org/index.php/i-jet/article/view/17095.