Brayl alifbosi va uning paydo bo‘lish tarixi. Journal of Universal Science Research, [S. l.], v. 1, n. 3, p. 50–55, 2023. Disponível em: https://universalpublishings.com/~niverta1/index.php/jusr/article/view/304. Acesso em: 23 nov. 2024.