F. Khattab, Asaad. “Effect of Aromatic Ester Groups on Electrical Conductivity of Polyazomethine”. Rafidain Journal of Science 19, no. 3 (June 1, 2008): 8–15. Accessed September 29, 2025. https://jwups.uomosul.edu.iq/index.php/rsci/article/view/46390.