^Carlos Eduardo Audi, “Osvaldo Lacerda: His Importance to Brazilian Music and Elements of His Musical Style,” PhD diss., (Florida State University, 2006), 30.
^Gerard Béhague, “Lacerda, Osvaldo (Costa de),” in Grove Music Online (Oxford University Press, 2001), https://doi.org/10.1093/gmo/9781561592630.article.15771. "نسخة مؤرشفة". مؤرشف من الأصل في 2020-07-02. اطلع عليه بتاريخ 2020-07-02.{{استشهاد ويب}}: صيانة الاستشهاد: BOT: original URL status unknown (link)
