Putra Adnyana, IGA, Sumadiyasa, Made, DAN Wendri, Nyoman. " Analysis of Superconductor of Nd1Ba2Cu3O7 and Nd3Ba5Cu8O18 Phases Using FTIR Spectrophotometer" BULETIN FISIKA [Online], Volume 21 Nomor 2 (15 July 2020)