DUBEY, M.K. A note on quasi k-ideals and bi k-ideals in ternary semirings. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 28, p. 143–150, 2011. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6000. Acesso em: 5 sep. 2026.