Younis Thanoon Al-Shakirji, Thanoon. “Selection of Variables in the Analysis of the Piezoelectric With Application”. Journal of Education and Science 24, no. 1 (November 30, 1999): 123–135. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42035.