LUDINGTON, J. D. Effects of word class and training method on vocabulary learning in a second language. Research in Language, [S. l.], v. 13, n. 4, p. 426–449, 2015. DOI: 10.1515/rela-2015-0030. Disponível em: https://czasopisma.uni.lodz.pl/research/article/view/2098. Acesso em: 18 may. 2024.