The Role of Motivation and Effort in EFL Learning Achievement: A Case Study of Wollo University English Language Improvement Centre in 2016 E.C. Eduac Multidisciplinary Research Journal, [S. l.], v. 1, n. 02, p. 55–63, 2025. DOI: 10.63300/. Disponível em: https://eduac.in/journal/index.php/emrj/article/view/11. Acesso em: 6 sep. 2025.