, MOHAMMAD SHAHID NADEEM, P. K. R. S. P. D. Improving the Performance of Information Collection Using Social Networks with Online Sampling. International Journal of Engineering and Computer Science, india, v. 5, n. 9, 2016. Disponível em: http://ijecs.in/index.php/ijecs/article/view/2521. Acesso em: 24 nov. 2024.