SUN, H.; FANG, S. What constitutes vocabulary learning difficulty? A classroom-based study of semantic relatedness and L1 familiarity effects on L2 word learning. Australian Journal of Applied Linguistics, Melbourne, Australia, v. 4, n. 3, p. 82–102, 2021. DOI: 10.29140/ajal.v4n3.545. Disponível em: https://www.castledown.com/journals/ajal/article/view/ajal.v4n3.545. Acesso em: 6 oct. 2026.