Mathewson I.(2004)."Mirror writing ability is genetic and probably transmitted as a sex-linked dominant trait: it is hypothesised that mirror writers have bilateral language centres with a callosal interconnection".Med Hypotheses.62(5): 733–9.doi:10.1016/j.mehy.2003.12.039.பப்மெட்:15082098.
Mathewson I.(2004)."Mirror writing ability is genetic and probably transmitted as a sex-linked dominant trait: it is hypothesised that mirror writers have bilateral language centres with a callosal interconnection".Med Hypotheses.62(5): 733–9.doi:10.1016/j.mehy.2003.12.039.பப்மெட்:15082098.