EXPLORING THE EFFECTS OF GAMIFICATION IN GRAMMAR INSTRUCTION ON BEGINNER EFL STUDENTS’ GRAMMATICAL UNDERSTANDING AND LEARNING MOTIVATION. J-Shelves of Indragiri (JSI), [S. l.], v. 8, n. 1, p. 331–342, 2026. DOI: 10.61672/jsi.v8i1.3602. Disponível em: https://ejournal-fkip.unisi.ac.id/shelves/article/view/3602. Acesso em: 26 may. 2026.