Takziyah Y, Sumangala S. Multidimensional Service Quality Evaluation in a Private English Course Institution: A SERVQUAL-Adapted Percentage-Based Performance Mapping. Jou. of. Lang. Lit. Ed. Resc [Internet]. 2026Mar.16 [cited 2026Apr.1];2(2):306-13. Available from: https://cahaya-ic.com/index.php/JoLLE/article/view/2896