Diep, Pham Thi Ngoc. “Secure and Privacy-Preserving Data Sharing in Multi-Cloud Environments: A Blockchain-Based Approach”. Journal of Sustainable Technologies and Infrastructure Planning 8, no. 4 (April 10, 2024): 21–30. Accessed July 4, 2024. https://publications.dlpress.org/index.php/JSTIP/article/view/99.