K. ARUN; A. SRINAGESH; M.RAMESH. Twitter Sentiment Analysis on Demonetization tweets in India Using R language. International Journal of Computer Engineering in Research Trends, [S. l.], v. 4, n. 6, p. 252–258, 2017. Disponível em: https://www.ijcert.org/index.php/ijcert/article/view/406. Acesso em: 4 nov. 2025.