Faisal , Widad Mahmood, trans. “Study The Effect of Substitution Ag on Behavior of The High Temperature of YBa2Cu3-xAgxO6.5+δ Superconductor”. Thamar University Journal of Natural & Applied Sciences 5, no. 1 (January 28, 2023): 91–100. Accessed April 19, 2026. https://journal.tu.edu.ye/index.php/TUJNAS/article/view/1308.