VIDHYALAKSHMI, S.; GOPALAN, M. Observations on Non-homogeneous Bi-quadratic with Four unknowns . Journal of Research in Multidisciplinary Methods and Applications, [S. l.], v. 1, n. 5, p. 01220105002, 2022. Disponível em: http://satursonpublishing.com/jrmma/article/view/a01220105002. Acesso em: 29 apr. 2024.