(3JaSjQ GdbQBf GdYXje (B:s (3GdeLdO GdKGfi (B/s - (3GdOeTbi, YeGO GdOjf CHh GdaOGA ESeGYjd Hf cKjQ GdbQTis ((3HjQhJ (B:s (3OGQ GdeYQaI,s, 1969)
(3GdfU HGddZI GdYQHjIs
Keywords: (3JaSjQ GdbQBfs; (3GdTQjYI GdESdGejIs