AL-SHUTNAWI, B.; ZANNON, M. Q is a Convergence Set. American Scientific Research Journal for Engineering, Technology, and Sciences, [S. l.], v. 11, n. 1, p. 169–172, 2015. Disponível em: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/610. Acesso em: 2 may. 2024.