CAROLINA PAKPAHAN. The Effect Of Using A Mental Model On Student’s Speaking Ability In The Second Semester Students Of The English Education Study Program. Journal of Innovation in Education and Social Research, [S. l.], v. 1, n. 1, p. 15–21, 2023. Disponível em: https://journals.proindex.uz/index.php/JIESR/article/view/3. Acesso em: 4 apr. 2026.