Putra, Berlian Juliartha Martin, Afrida Helen, and Ali Ridho Barakbah. “Rule-Based Sentiment Degree Measurement of Opinion Mining of Community Participatory in the Government of Surabaya”. EMITTER International Journal of Engineering Technology 6, no. 2 (December 29, 2018): 200-216. Accessed May 19, 2024. https://emitter2.pens.ac.id/ojs/index.php/emitter/article/view/275.