Febry Claudia Nabasa Siahaan, Nazaruddin, Beby Karina Fawzeea. SENTIMENT ANALYSIS ON PLN MOBILE APPLICATION USERS’ OPINIONS TO IMPROVE THE QUALITY OF PLN MOBILE SERVICES. IJSET [Internet]. 2024 Jun. 26 [cited 2026 Apr. 26];3(7):1191-8. Available from: https://www.ijset.org/index.php/ijset/article/view/490