Abdul Sattar Al-Udwany, dr. “The Assumption of Information Value in the Light of Life Cycle Concepts, Importance and Effect and the Possibility of Calculation”. TANMIYAT AL-RAFIDAIN 31, no. 94 (June 1, 2009): 300–318. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/tanmiyat/article/view/30119.