S.H, K.; T.H, L. Real Hypersurfaces in a Complex Projective Space with Umbilic Points. Malaysian Journal of Science, [S. l.], v. 26, p. 17–22, 2007. Disponível em: https://mojes.um.edu.my/index.php/MJS/article/view/8717. Acesso em: 23 aug. 2025.