Sitompul, Yakub Mas Arbi, and Marah Dolly Nst. 2026. “Implementation of the Naïve Bayes Algorithm for Sentiment Analysis of Portos Coffee Shop Customer Reviews Using a Natural Language Processing (NLP) Approach”. International Journal of Educational Technology Research 4 (3):227-36. https://doi.org/10.59890/ijetr.v4i3.15.