ULLOA, J. L. Francois Victor Tochon, PH.D. Signs and Symbols in Education: Educational Semiotics. Lenguas Modernas, [S. l.], n. 45, p. Pág. 153 – 155, 2016. Disponível em: https://lenguasmodernas.uchile.cl/index.php/LM/article/view/42734. Acesso em: 29 abr. 2024.