(3ai Yde GddZI GdJWHjbi (B/ s - (3eMeO aJjMs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1989)
Keywords: (3WQb GdJOQjSs; (3GdHdGZI GdYQHjIs; (3GdeYGfis