2025. Optimization of structure and preparing conditions of HTSC (Bi0.8Pb0.2)2(Sr1-yBay)2Ca2Cu3O10+ to Obtain the Highest T. Iraqi Journal of Science. 48, 1 (Jan. 2025), 89–96. DOI:https://doi.org/10.24996/ijs.2007.48.1.%g.