SHAMSUDIN, N. F.; BASIRON, H.; SA’AYA, Z. Lexical Based Sentiment Analysis - Verb, Adverb & Negation. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), [S. l.], v. 8, n. 2, p. 161–166, 2016. Disponível em: https://jtec.utem.edu.my/jtec/article/view/976. Acesso em: 15 aug. 2022.