The The behavior of infants before hearing a lullaby. Scientific Journal of Eduardo Mondlane University, Serie: Educational Sciences, [S. l.], v. 1, n. 1, 2014. DOI: 10.70778/njcqqb13. Disponível em: http://revistacientifica.uem.mz/revista/index.php/edu/article/view/189. Acesso em: 21 feb. 2026.