Hussein, M. A. “Mitigating Security Risks in Multi-Cloud Environments: A Blockchain-Enabled Zero Trust Architecture for Resilient Information Systems”. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, Vol. 7, no. 1, Nov. 2025, pp. 11-28, https://cajmtcs.casjournal.org/index.php/CAJMTCS/article/view/837.