Muthanna Abdulwahed Khudhair. “A New Multiple Blind Signatures Using El-Gamal Scheme”. Journal of Madenat Alelem University College 10, no. 2 (January 1, 2018): 30-41. Accessed May 3, 2024. https://journal.mauc.edu.iq/index.php/JMAUC/article/view/28.