YOUNIS THANOON AL-SHAKIRJI, T. Selection of variables in the analysis of the piezoelectric with application. Journal of Education and Science, [S. l.], v. 24, n. 1, p. 123–135, 1999. DOI: 10.33899/edusj.1999.51499. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42035. Acesso em: 10 sep. 2025.