Grammatical relationship between the morphemes -tsu ’negative’ ;and -ku ’interrogative’ in Huaraz Quechua. Letras, Lima, Peru, v. 72, n. 101-102, p. 219–237, 2001. DOI: 10.30920/letras.72.101-102.13. Disponível em: https://revistaletras.unmsm.edu.pe/index.php/le/article/view/1496. Acesso em: 13 sep. 2026.