JEBBAR, Wid Alaa; AL-ZUBAIDIE, Mishall. Improving Security in E-Transaction Blockchain Systems by Segmenting Processes into Separate Zones and Using Smart Contracts Arbitration. Iraqi Journal of Science, [S. l.], v. 66, n. 6, p. 2502–2522, 2025. DOI: 10.24996/ijs.2025.66.6.26. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12719.. Acesso em: 8 dec. 2025.