WIDODO, D. A. .; IKSAN, N. .; SUNARKO, B. . Sentiment Analysis of Twitter Media for Public Reaction Identification on COVID-19 Monitoring System using Hybrid Feature Extraction Method. International Journal of Intelligent Systems and Applications in Engineering, [S. l.], v. 11, n. 1, p. 92–99, 2023. Disponível em: https://ijisae.org/index.php/IJISAE/article/view/2447. Acesso em: 15 may. 2024.