Abinesh.P, Balaji.V, Aswin Kumar.T, and Saraswathi.V. “Enhancement of Cloud Data Security by Implementing Group Key Segregation”. International Journal of Advance Engineering and Research Development (IJAERD), vol. 5, no. 1, Jan. 2018, pp. 918-21, https://ijaerd.org/index.php/IJAERD/article/view/2211.