Dilla Sintia, Indra Perdana, and Elanneri Karani. “ESP in Practice: A Literature Review of Challenges Faced by Teachers and Learners”. EJI (English Journal of Indragiri): Studies in Education, Literature, and Linguistics, vol. 9, no. 2, July 2025, pp. 584-97, doi:10.61672/eji.v9i2.3003.