ALRAGWI, N. A.; ZAHARY, A. T. A Review on Recent Advancements in Blockchain Technology for Secure Electronic Certificates. Sana’a University Journal of Applied Sciences and Technology , [S. l.], v. 4, n. 2, p. 1766–1780, 2026. DOI: 10.59628/jast.v4i2.2264. Disponível em: https://journals.su.edu.ye/index.php/jast/article/view/2264. Acesso em: 3 mar. 2026.