(3GdhGbYI (B( (3GdeTi Ydi GdUQGW QhGjI YdejI (B) (3L(B1 / s - (3jMji GdQNGhis ([S.N] : (3OGQ GdZO ddKbGaI hGdfTQ , s, 1977)
Keywords: (3Yde GdfaSs