Khalid Hamdi Razzeg, Abdul Kareem Dahas Ali, and Chanar Abiden Zaynel. “Effect of Repeated Annealing on the Synthetic and Electrical Properties of Bi2-(x+y)PbxAgy Sr2Ca2Cu3O10+δ Electrically Superconductor”. Tikrit Journal of Pure Science 24, no. 4 (August 4, 2019): 57–61. Accessed June 18, 2025. https://tjpsj.org/index.php/tjps/article/view/400.