MR. S.MARAGATHARAJ, G. K. , K. , N. A. Multiuser Short Message Service Based Wireless Electronic Notice Board. International Journal of Engineering and Computer Science, india, v. 2, n. 04, 2017. Disponível em: https://ijecs.in/index.php/ijecs/article/view/609. Acesso em: 23 jul. 2024.