(CMC-PVP) Films Filled with SnO2 Nanoparticles Synthesized by (Solution-Gel) Method. Journal of the College of Basic Education, [S. l.], v. 27, n. 113, p. 177–195, 2022. DOI: 10.35950/cbej.v27i113.5005. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/5005.. Acesso em: 13 may. 2025.