Merinda Lestandy, Abdurrahim Abdurrahim, and Lailis Syafa’ah, “Analisis Sentimen Tweet Vaksin COVID-19 Menggunakan Recurrent Neural Network dan Naïve Bayes”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 5, no. 4, pp. 802–808, Aug. 2021, doi: 10.29207/resti.v5i4.3308.