Wantana, N., Mutuwong, C., & Chaiphaksa, W. (2026). ENHANCING GAMMA-RAY SHIELDING EFFICIENCY OF ERBIUM OXIDE DOPED GERMANATE GLASS: A STUDY USING FLUKA AND XCOM PROGRAMS . Suranaree Journal of Science and Technology, 33(1), 030371(1–6). https://doi.org/10.55766/sujst9823