EDGERTON, M. E.; TAN, S.; EVANS, G.; MYUNG, H. J.; BO, K. K.; LOO, F.-Y.; PAN, K.-C.; HASHIM, M. N. PITCH PROFILE OF THE GLOTTAL WHISTLE (M4). Malaysian Journal of Science, [S. l.], v. 32, n. 1, p. 78–85, 2013. DOI: 10.22452/mjs.vol32no1.13. Disponível em: https://mjlis.um.edu.my/index.php/MJS/article/view/6911. Acesso em: 23 dec. 2024.