Robinson Weber, Sandra (University of New Mexico) Native americans before the bench The nature of contrast and conflict in native american law ways and western legal systems, The Social Science Journal , vol. 19, No. 3, July 1982, pp. 47 57.

For example, in England, in writing covers verbal agreements (see Zambia Steel v. James Clark, Court of Appeal , 2 Lloyd's Rep. 225, followed by Abdullah M. Fahem v. Mareb Yemen Insurance and Tomen, Queen's Bench Reports 2 Lloyd's Rep. 738, Yearbook of Commercial Arbitration, 1998, p. 789).