Pratmanto D, Imaniawan FFD. Mapping Sentiment Analysis in Educational Technology: OpenAlex Bibliometrics, Thematic Trends, and Research Gaps (2013-2025). journalisi [Internet]. 2026 Jun. 22 [cited 2026 Sep. 13];8(3):2836-60. Available from: https://journal-isi.org/index.php/isi/article/view/1604