ET. AL., J. Jeyasudha,. Topic Modeling and Sentimental Analysis of Tweets on Covid19 to Find the Weightage of the Popular Hashtag. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 9, p. 1856–1861, 2021. Disponível em: https://www.turcomat.org/index.php/turkbilmat/article/view/3612. Acesso em: 13 oct. 2025.