DR. HARIKRISHNA A. PATEL. Effectiveness of Concept Attainment Model in Teaching English Language. Research Ambition an International Multidisciplinary e-Journal, [S. l.], v. 2, n. IV, p. 56–62, 2018. Disponível em: http://researchambition.com/RA/index.php/ra/article/view/69. Acesso em: 5 may. 2024.