FRIFELT, Karen. A possible Link between the Jemdet Nasr and the Umm an-Nar Graves of Oman. The Journal of Oman Studies, [S. l.], v. 1, p. 57–80, 1975. Disponível em: https://dev.archaeopresspublishing.com/ojs/index.php/jos/article/view/3211. Acesso em: 11 may. 2026.