Manaf, S. A. R., A. Alamudi, and A. Fitrianto. “Sentiment Analysis of Twitter Users’ Opinion Towards Face-to-Face Learning: Analisis Sentimen Tanggapan Masyarakat Pengguna Twitter Terhadap Pembelajaran Tatap Muka”. Indonesian Journal of Statistics and Its Applications, vol. 7, no. 1, Oct. 2023, pp. 15-31, doi:10.29244/ijsa.v7i1p15-31.