(3GdGNJHGQGJ hGdebGjjS (B/ s - (3eMeO YKeGf fLGJi (B((3eQGLY(B)s; (3SYO YHOGdQMefs; (3JGQjdQ, djhfGs ([S.N] : (3OGQ GdTQhb , s, 1988)
Keywords: (3WQb GdJOQjSs; (3Yde GdfaSs; (3GdJMdjd GdfaSis; (3GdTNUjIs; (3Yde GdfaS GdYdGLis; (3GNJHGQGJ GdPcGAs; (3WQb GdbjGSs