Alkhawi , M.A. and Alshameri, A.S. 2024. COST-EFFECTIVE AND EFFICIENT BLOCKCHAIN FRAMEWORK FOR VERIFYING CERTIFICATE IN YEMENI UNIVERSITIES. Turkish Journal of Computer and Mathematics Education (TURCOMAT). 15, 2 (May 2024), 206–216. DOI:https://doi.org/10.61841/turcomat.v15i2.14642.