MUHSIN ALI, Ghusoon; ABD AL-KAREEM AL-RUBYAI, Ghanim. Design of Round Radial Mode Piezoelectric Transformer for Lamp Ballast Applications. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 10, n. 4, p. 101–119, 2006. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1775.. Acesso em: 3 jul. 2025.