Geddes, J., Murray, H. K. and Murray, J. C. (2016) “Tullich, Aberdeenshire: a reappraisal of an early ecclesiastical site and its carvedstones in the light of recent excavations”, Proceedings of the Society of Antiquaries of Scotland, 145, pp. 229–281. doi: 10.9750/PSAS.145.229.281.