Hamdi Razzeg, Khalid, 		Dahas Ali, Abdul Kareem, AND 		Zaynel, , Chanar Abiden.
" Effect of repeated annealing on the synthetic and electrical properties of Bi2-(x+y)PbxAgy Sr2Ca2Cu3O10+δ  electrically superconductor" <em>Tikrit Journal of Pure Science</em> [Online], Volume 24 Number 4 (4 August 2019)