H. SHAIKH; M. Y. KOONDHAR; M. M. RIND; A. B. M. ARAIN; A. RAZA; A. W. MAHESSAR. ATM versus IP for Voice over IP. Sindh University Research Journal - SURJ (Science Series), [S. l.], v. 47, n. 4, 2015. Disponível em: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/5271. Acesso em: 5 jun. 2026.