Ivanova, Desislava. “BLOCKCHAIN TECHNOLOGY AND ITS APPLICATION IN THE CERTIFICATION OF EDUCATIONAL ACHIEVEMENTS: BLOCKCHAIN TECHNOLOGY AND ITS APPLICATION IN THE CERTIFICATION OF EDUCATIONAL ACHIEVEMENTS”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 28, no. 1 (November 14, 2025): 226–234. Accessed December 6, 2025. https://jsar.ftn.shu.bg/index.php/jsar/article/view/440.