(3GdLfSjI ai GdJTQjYGJ GdYQHjI GdebGQfI (B/ s - (3aDGO YHOGdefYe QjGVs; (3eYgO GdHMhK hGdOQGSGJ GdYQHjIs ([S.N] : (3GdefXeI GdGSdGejI ddJQHjI hGdYdhe hGdKbGaI , s, 1975)
Keywords: (3GdbGfhfs; (3GdLfSjIs; (3GdScGf GdGLGfHs; (3GdbGfhf GdOhdi GdNGUs; (3GdGbdjGJs; (3GdLfSjI GdeROhLIs; (3JfGRY GdbhGfjfs; (3GdehGWfIs