(3OaGYG Yf Mbhb GdEfSGf (B/s - (3YHO GdUeO, NjQ GdOjf(B.s ((3OeTb (B:s (3OGQ WdGS ddOQGSGJ hGdJQLeI hGdfTQ,s, 1992)
(3GdfU HGddZJjf GdYQHjI hGdaQfSjI(B.s
Keywords: (3Mbhb GdEfSGf (B((3bGfhf Ohdj(B)s