“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”. 2018. Al-Nahrain Journal of Science 13 (3): 30-35. https://anjs.edu.iq/index.php/anjs/article/view/1029.