Efrilianda, Devi Ajeng, Erika Noor Dianti, and Oktaria Gina Khoirunnisa. 2021. “Analysis of Twitter Sentiment in COVID-19 Era Using Fuzzy Logic Method”. Journal of Soft Computing Exploration 2 (1):1-5. https://doi.org/10.52465/joscex.v2i1.12.