Auliarahman, R.M. et al. 2021. Conversational Recommender Systems Based on Criticism for Tourist Attractions using TF-IDF. JURNAL MEDIA INFORMATIKA BUDIDARMA. 5, 4 (Oct. 2021), 1242–1248. DOI:https://doi.org/10.30865/mib.v5i4.3245.