(3adSaI GdYdhe(B: (3GdefWb GdQjGVi L(B3 / s - (3eGgQ YHOGdbGOQ eMeO Ydis ((3HjQhJ (B: s (3OGQ GdfgVI GdYQHjI ddWHGYI hGdfTQ , s, 1985)
Keywords: (3GdYde hGdMVGQIs; (3GdefWbs; (3GdefWb GdQeRi hGdQjGVis; (3GdefWb GdUhQis; (3GdadSaI (B- (3fXQjGJs; (3GdYdhe (B- (3JGQjNs