Wlla M. Mohammed. "Study of the Electrical Properties of the Thin Film (SnO2 )1-X(Bi2O3)X Preparation by Vacuum Evaporation System". Tikrit Journal of Pure Science, م 24, عدد 2, أبريل، 2019, ص 84-87, doi:10.25130/tjps.v24i2.357.