RAHMAN, A. R. A. R. A. G. A.; ALSIDDIG, N. O. B.; MALIK, S. K. The fundamenal theorem of surfaces theory. Journal of Advanced Education and Sciences, [S. l.], v. 2, n. 4, p. 51–55, 2022. Disponível em: https://dzarc.com/education/article/view/167. Acesso em: 4 feb. 2025.