SOME DISCUSION ON CHANGE RANK OF MATRIX. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 4, p. 1269–1271, 2017. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/4868. Acesso em: 9 sep. 2025.