GADIR ABDEL RAHMAN, A. R. A. R. A.; MAJID ALI, T. A. A.; MOHAMMED ZUBIR, S. A.; ELNAEEM, H. A. M. Using the New Mathematical Method to Find the Third Fundamental Form of Surface. International Journal Of Mathematics And Computer Research, v. 10, n. 4, p. 2650-2654, 19 abr. 2022.