Junadhi, Agustin, Rifqi M, Anam MK. Sentiment Analysis of Online Lectures using K-Nearest Neighbors based on Feature Selection. j. nas. pendidik. teknik. inform. [Internet]. 2022 Dec. 27 [cited 2024 May 7];11(3):216-25. Available from: https://ejournal.undiksha.ac.id/index.php/janapati/article/view/51531