SOUSTER, T. Review of Feedback Papers 5-9. Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 14, 1976. DOI: 10.25602/GOLD.cj.v0i14.1028. Disponível em: https://gold-ojs-prod.gold-eprints.cdl.cosector.com/index.php/contactjournal/article/view/contactjournal14_p36. Acesso em: 3 aug. 2025.