SUARCAYA, P. Increasing student participation in English vocabulary classes by providing time flexibility in accomplishing exercises. The JALT CALL Journal, Melbourne, Australia, v. 4, n. 1, p. 19–29, 2008. DOI: 10.29140/jaltcall.v4n1.51. Disponível em: https://www.castledown.com.au/journals/jaltcall/article/view/jaltcall.v4n1.51. Acesso em: 22 sep. 2026.