AGVAANTSEREN, U. J.; HOON, P. S. An Analysis of Educational Patents of Innovation For Formal Education. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 10, n. 1, p. 52–62, 2013. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/1143. Acesso em: 3 jul. 2024.