(3OQhS haJGhi aj GdMQe Gdecj (B/s - (3GdYKjejf, eMeO Hf UGdM Hf eMeO,s 1347-1421 (3gLQjG(B.s; (3Bd OMQhL, HgGA GdOjf Hf YHO GdefYes ((3GdQjGV (B:s (3ecJHI Chdj Gdfgj,s, 1990)
Keywords: (3Gdabg GdESdGejs; (3GdESdGes -- (3ebGdGJ heMGVQGJs