BARAKAT, Mirham Abdallah Youssef. “Amelioration of Ultrasonic Transducer to Study CuO Doped Thin Films”. Archives of Acoustics 43, no. 3 (July 11, 2018): 487–495. Accessed June 10, 2025. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/2082.