WIJAYANTI, I. E. ON FREE PRODUCT OF N-COGROUPS. Journal of the Indonesian Mathematical Society, [S. l.], v. 18, n. 2, p. 101–111, 2012. DOI: 10.22342/jims.18.2.116.101-111. Disponível em: http://jims-a.org/index.php/jimsa/article/view/116. Acesso em: 27 apr. 2024.