(3Pe GdaQbI hGdGNJdGa aj GdcJGH hGdSfI (B:s (3Edi ef CQGO YOhge VQH HYVge HHYV Edi GdLeGYGJ GdESdGejI(B/s - (3GdZfjeGf, YHO Gddg Hf eMeO YHO Gddg,s 1353 (3gLQjG(B-s ((3OefghQ(B- (3eUQ (B:s (3ecJHI djfI,s, 1989)
Keywords: (3GdhYX hGdEQTGOs