STUDY OF THE CRITICAL ANGLE OF CHANNELING OF ACTIVE METAL IONS THROUGH THIN ALUMINUM FILMS. American Journal of Pedagogical and Educational Research, [S. l.], v. 31, p. 57–61, 2024. Disponível em: https://americanjournal.org/index.php/ajper/article/view/2552. Acesso em: 5 oct. 2025.