Husein, A. M., B. . Sipahutar, R. Dashuah, and E. Hutauruk. “Sentiment Analysis Od Face To Face School Policy On Twitter Social Media With Support Vector Machine(SVM)”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 7, no. 1, Jan. 2023, pp. 480-6, doi:10.33395/sinkron.v8i1.11950.