UGAR, Narayan. Logo-The Educational Language of the Future. Journal of Engineering Education Transformations, [S. l.], p. 34–40, 1991. DOI: 10.16920/jeet/1991/v4i3/113163. Disponível em: https://journaleet.in/index.php/jeet/article/view/452. Acesso em: 5 dec. 2025.