C.T, A. M. .; ILANKUMARAN, D. M. . Programmed Instruction is a System for Sustainable Development of Language Skills. Migration Letters, London, UK, v. 20, n. S9, p. 1643–1654, 2023. DOI: 10.59670/ml.v20iS9.6028. Disponível em: https://migrationletters.com/index.php/ml/article/view/6028. Acesso em: 3 jul. 2024.