KHUSANOV BAZAR; KULMIRZAEVA GULRABO ABDUGANIEVNA. Singular points classification of first order differential equations system not solved for derivatives. International Journal on Integrated Education, [S. l.], v. 4, n. 3, p. 448–450, 2021. DOI: 10.31149/ijie.v4i3.1533. Disponível em: https://journals.researchparks.org/index.php/IJIE/article/view/1533. Acesso em: 11 oct. 2026.