found: Welsh medieval legal triads, 2002:title page (Sara Elin Roberts, Jesus Coll.; D.Phil. thesis, Univ. of Oxford) author's declaration form (Fac. of Med. and Mod. Lang. and Lit.) thesis cat. inf. form (b. Jan 14, 1976; author's preferred form of name entry: Roberts, Sara Elin)
found: The Welsh legal triads, 2015title page (Sara Elin Roberts (B.A. (Wales), M.ST., D.Phil. (Oxon), F.R.Hist.S))
found: Cyfarwydd mewn cyfraith, 2017:t.p. (Sara Elin Roberts) list of contributors (Dr. Sara Elin Roberts; historian specialising in medieval Welsh history and literature, particularly medieval Welsh law)