MEMON, A. . Differentiability of Inverse Matrices. دراسات في الاقتصاد والتجارة , [S. l.], v. 17, n. 1, 1981. DOI: 10.37376/deb.v17i1.1919. Disponível em: https://journals.uob.edu.ly/DEB/article/view/1919. Acesso em: 16 2025.