ธรรมบุญเรือง ด. Symbols of mind. RMUTI Journal Humanities and Social Sciences, [S. l.], v. 1, n. 1, p. 1–12, 2014. Disponível em: https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/196083. Acesso em: 5 may. 2024.