(3ehShYI GdbjhO hGdGhUGa GdLfGFjI(B: (3ddJTQjYGJ GdNGUI hbGfhf GdYbhHGJ (B/ s - (3GfhQ GdYeQhSis; (3GeLO GdYeQhSis ([S.N] : (3dG jhLO , s, 1992)
Keywords: (3GdbGfhfs; (3bGfhf GdYbhHGJs