O’Dwyer, S. The William Kennedy Lectures, Armagh Pipers Club, 73-75. 2019.
O’Dwyer, S. The Encyclopaedia of Music in Ireland. Prehistoric Music in Late Stone Age, Early Bronze Age, Middle to Late Bronze Age, The Crotal hand bell or rattle, Middle Iron Age. H. White, B. Boydell. University College Dublin Press. 860-861. 2013.
O’Dwyer, S. Companion to Irish Traditional Music. Ancient Music Ireland research, F. Vallely, L. Doherty, M. Dowling, T.Moylan, C. Foley, C. Hamilton, D. Wilkinson, N. Keegan, J. Moulden. Cork University Press, 12, 350, 511, 696. 2011.
O’Dwyer, S. Scotland’s Music, Bronze Age horns and crotals. A History of Traditional and Classical Music of Scotland from Earliest Times to the Present Day. J. Purser. Mainstream Publishing 21-23. 1991. Second Edition, 25-27. 2007.
O’Dwyer, S. The Encyclopaedia of Ireland. Musical Instruments, Ancient, B. Lawlor. Gill & Macmillian, 754-757. 2003.