F. F. MENDE. Ferromagnetic and Ferroelectric Transformers. Global Journal of Science Frontier Research, [S. l.], v. 19, n. A1, p. 29–32, 2019. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/2438. Acesso em: 9 may. 2024.