NEMETH, ERWIN (2004-01-01). "Measuring the Sound Pressure Level of the Song of the Screaming Piha Lipaugus Vociferans: One of the Loudest Birds in the World?". Bioacoustics. 14 (3): 225–228. doi:10.1080/09524622.2004.9753527. ISSN0952-4622. S2CID84218370.
NEMETH, ERWIN (2004-01-01). "Measuring the Sound Pressure Level of the Song of the Screaming Piha Lipaugus Vociferans: One of the Loudest Birds in the World?". Bioacoustics. 14 (3): 225–228. doi:10.1080/09524622.2004.9753527. ISSN0952-4622. S2CID84218370.
worldcat.org
NEMETH, ERWIN (2004-01-01). "Measuring the Sound Pressure Level of the Song of the Screaming Piha Lipaugus Vociferans: One of the Loudest Birds in the World?". Bioacoustics. 14 (3): 225–228. doi:10.1080/09524622.2004.9753527. ISSN0952-4622. S2CID84218370.