TUNC, C. INSTABILITY FOR A CERTAIN FUNCTIONAL DIFFERENTIAL EQUATION OF SIXTH ORDER. Journal of the Indonesian Mathematical Society, [S. l.], v. 17, n. 2, p. 123–128, 2011. DOI: 10.22342/jims.17.2.7.123-128. Disponível em: https://jims-a.org/index.php/jimsa/article/view/7. Acesso em: 2 may. 2024.