@article{le_mai_nguyen_tran_2026,  title={Designing and Building a Low-Cost Geiger-Müller Detector for Radiation Safety Experiments in Physics Education},  volume={48},  ISSN={1806-1117},  url={https://doi.org/10.1590/1806-9126-RBEF-2025-0485},  DOI={10.1590/1806-9126-RBEF-2025-0485},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Le, Anh Duc and Mai, Hoang Phuong and Nguyen, Quoc B and Tran, Ngoc Chat},  year={2026},  pages={e20250485} }