Akpatsa, Samuel Kofi, Xiaoyu Li, Hang Lei, and Victor-Hillary Kofi Setornyo Obeng. “Evaluating Public Sentiment of Covid-19 Vaccine Tweets Using Machine Learning Techniques”. Informatica 46, no. 1 (March 15, 2022). Accessed June 23, 2025. https://puffbird.ijs.si/index.php/informatica/article/view/3483.