Saputra, Jeffri Prayitno Bangkit, and Aayush Kumar. “Emotion Detection in Railway Complaints Using Deep Learning and Transformer Models: A Data Mining Approach to Analyzing Public Sentiment on Twitter”. Journal of Digital Society 1, no. 2 (June 2, 2025): 109–122. Accessed July 5, 2025. https://jds.mbicore.com/index.php/JDS/article/view/6.