Prajwal V1, Mohan Kumar T. G2, Sanjay H. A3, Manish S Byatroy4, Yashaswi S5, Niharika Ganesh. A Survey on Multilevel Data Security Framework for Cloud Data. International Journal of Advanced Science and Technology, v. 29, n. 10s, p. 4159-4167, 1 Jun. 2020.