Raven, J., B. Hannon, R. Handy, C. Benson, K. Wilson and E. Henry (1972). The ESRI Survey of the Attitudes of Post Primary Teachers and Pupils — Volume I, Memorandum Series 87, Dublin: ESRI, https://www.esri.ie/publications/the-esri-survey-of-the-attitudes-of-post-primary-teachers-and-pupils-volume-i