Radhakrishnan, Venkateswaran, Orland G. Basas, and Rogelio T. Gutierrez Jr. 2014. “A Survey on Research Issues in Cloud Computing”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 16 (1): 449-54. https://gssrr.org/JournalOfBasicAndApplied/article/view/2106.