إسماعيل ن. ., and علي إ. . “Study the Effect of Doping withCa2+ and Si4+ Ions on Linear Absorption Coefficient of Garnet Ferrite Film Using Saha Equation”. Tishreen University Journal -Basic Sciences Series, vol. 42, no. 4, Oct. 2020, https://journal.tishreen.edu.sy/index.php/bassnc/article/view/9943.