BARRETT, R. J. The attitude to language and the notions of perspective grammars. Vidyapith (વિદ્યાપીઠ), [S. l.], v. 51, n. 1 & 2, p. 61–88, 2013. Disponível em: http://journal.gujaratvidyapith.org/index.php/vp/article/view/225. Acesso em: 13 jul. 2025.