(3LQGFe GdQThI hGdGYJOGA Ydi GdeGd GdYGe (B:s (3aj VhA bVGA GdfbV GdLfGFj efP EfTGA eMceI GdfbV SfI (B1931 (3MJi SfI (B1986 /s - (3MSf YHOGdHGfi eZjHs ((3GdbGgQI (B:s (3GdecJHI GdbGfhfjI ,s, 1987)
(3jJfGhd GdcJGH LQGFe GdQThI, hGNJdGS GdeGd GdYGe, hGdJQHM, hGdGSJjdGA Ydi GdeGd GdYGe, hGdMQjb GdYeO hHGdEgeGd aj VhA CMcGe eMceI GdfbV GdLfGFj(B. s
Keywords: (3bGfhf LfGFis; (3GdQThIs