Mega Puspitaratu, E., S. Suprihatin, P. K. karo, and E. G. Suka. “Effect of CaCO3 Levels on Formation Phase Material BSCCO-2212 Superconductor With Method Mixing Wet”. Journal of Energy, Material, and Instrumentation Technology, vol. 4, no. 2, May 2023, pp. 53-57, doi:10.23960/jemit.v4i2.47.