Irsalinda, N., Haswat, H., Sugiyarto, S. and Fitrianawati, M. 2021. Hidden Markov Model for Sentiment Analysis using Viterbi Algorithm. EKSAKTA: Journal of Sciences and Data Analysis. 2, 1 (Jan. 2021), 18–23. DOI:https://doi.org/10.20885/EKSAKTA.vol2.iss1.art3.