A.I.A Jabbar, Dr., and Dr. Qutaiba I. Ali. “Enhancement of Token Ring LAN Performance Using Multiple Tokens Technique”. Al-Rafidain Engineering Journal (AREJ) 16, no. 1 (February 28, 2008): 25–36. Accessed August 7, 2025. https://ojs.uomosul.edu.iq/index.php/arej/article/view/27289.