Salsabila, S., Tyas, S.M.P., Romadhona, Y. and Purwitasari, D. 2023. Aspect-based Sentiment and Correlation-based Emotion Detection on Tweets for Understanding Public Opinion of Covid-19. Journal of Information Systems Engineering and Business Intelligence. 9, 1 (Apr. 2023), 84–94. DOI:https://doi.org/10.20473/jisebi.9.1.84-94.