J. Arnold F, Gonçalves MS, Bravo Roger LL, Mühlen SS. Electric Impedance of Piezoelectric Ceramics under Acoustic Loads. ECTI-EEC [internet]. 2014 Aug. 27 [cited 2026 Aug. 28];12(2):48-54. available from: https://ph02.tci-thaijo.org/index.php/ECTI-EEC/article/view/170819