LEKHANA, K.; K.T, Shivaram. A method for creating twelve-node finite element meshes to ‎find the cutoff wave number for polygonal and circular ‎waveguides. International Journal of Basic and Applied Sciences, [S. l.], v. 14, n. 1, p. 59–64, 2025. DOI: 10.14419/y9648s16. Disponível em: https://www.sciencepubco.com/index.php/IJBAS/article/view/33206.. Acesso em: 5 dec. 2025.