Muhammad Shollahuddin Hamidulloh, Saon, S., & Mahamad, A. K. . (2022). Classification Algorithm for the Sentiment Analysis of the Covid 19 Pandemic in Indonesia Context. Evolution of Information, Communication and Computing System, 3(1), 66-79. https://publisher.uthm.edu.my/bookseries/index.php/eiccs/article/view/35