Ismael Abdul Sattar Jabbar, Hassan Kassim Albahadilyr and Alaa A. Jabbar Altaay (2023) “Design and Implementation Digital Invitation System Based on Secure Hash Algorithm 3 ”, International Journal of Online and Biomedical Engineering (iJOE), 19(05), pp. pp. 105–116. doi: 10.3991/ijoe.v19i05.37583.