RATHER, NA; AHMAD, Faroz. On the critical points of a polynomial. BIBECHANA, [S. l.], v. 9, p. 28–32, 2012. DOI: 10.3126/bibechana.v9i0.7149. Disponível em: https://www.nepjol.info/index.php/BIBECHANA/article/view/7149. Acesso em: 5 dec. 2025.