“Comparative Analysis of Machine Learning and Deep Learning Approaches for Sentiment Analysis across Heterogeneous Datasets under Class Imbalance Conditions”. e-Jurnal Penyelidikan dan Inovasi 13, no. 2 (August 31, 2026): 174–187. Accessed October 3, 2026. https://www.ejpi.uis.edu.my.kuisjournal.com/index.php/ejpi/article/view/422.