M. Rupali G. Dande and P. Dr. Amol D. Potgantwar, “An Efficient Scheme to Support Direct Revocation in Cloud Computing Using CPABE :the Approach with Less Time Constraints”, IJET, vol. 7, no. 3.8, pp. 141–146, Jul. 2018, doi: 10.14419/ijet.v7i3.8.16849.