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- DARVILL, T. and WAINWRIGHT, G. 2002. SPACES—exploring Neolithic landscapes in the Strumble-Preseli area of southwest Wales, Antiquity, ù76, 623–24
- DRIVER, T. 2007. Pembrokeshire: Historic Landscapes from the Air, Aberystwyth: RCAHMW
- MYTUM, H. C. and WEBSTER, C. J. 1989. A survey of the Iron Age enclosure and chevaux de friseat Carn Alw, Dyfed, Proc. Prehistoric Soc., 55, 263–67
- REES, S. 1992. A Guide to Ancient and Historic Wales: Dyfed. London: HMSO