“STUDYING THE CONDUCTIVITY OF POLYSTYRENE USING 2-(SUB.)-5- [3-(5-NITRO-FUR-2-YL)-PROPEN-2-YLDIENE]AMINO 1,3,4- THIDIAZOLES AS ADDITIVES BY MEASURING FORBIDDEN ENERGY GAP”. Al-Nahrain Journal of Science, vol. 13, no. 3, July 2018, pp. 30-35, https://anjs.edu.iq/index.php/anjs/article/view/1029.