سهيل الصميدعي عامرتحسين. “New Way to Send Secret Messages Through Electronic Mail”. IRAQI JOURNAL OF STATISTICAL SCIENCES 6, no. 1 (June 1, 2006): 125–139. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/stats/article/view/29281.