ROGOWSKI, P.; ROŚCISZEWSKA, T.; JAROSZEWSKI, A. Sound reproduction levels in portable players used by pupils in Warsaw secondary schools. Archives of Acoustics, [S. l.], v. 26, n. 1, 2001. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/386. Acesso em: 25 apr. 2025.