KALDHOL, Nina Hagen; STAUSLAND JOHNSEN, Sverre. Grammaticalization in Somali and the development of morphological tone. Proceedings of the Linguistic Society of America, [S. l.], v. 6, n. 1, p. 587–599, 2021. DOI: 10.3765/plsa.v6i1.4993. Disponível em: https://journals.linguisticsociety.org/proceedings/index.php/PLSA/article/view/4993.. Acesso em: 27 may. 2026.