HAMEL, Patricia J.; SCHAEFER, Ronald P. Bibliography on Modalities. Kansas Working Papers in Linguistics, [S. l.], v. 5, p. 151–157, 1980. DOI: 10.17161/KWPL.1808.541. Disponível em: https://journals.ku.edu/kwpl/article/view/17303.. Acesso em: 4 may. 2024.