G. AYYAPPAN; P. GAYATHRI; V. MAHADEVAN. Oscillation of Third Order Quasilinear Advanced Differential Equation with ``Maxima. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 3, p. 231–236, 2018. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/375. Acesso em: 5 may. 2024.