(3bhGYO GdGeGf GdUfGYi Ydi GdSaf (B/ s - (3eMehO QHjY GdedWs ([S.N] : (3GdGcGOjejI GdYQHjI ddfbd GdHMQi , s, 1989)
Keywords: (3GWaGA GdMQGFbs; (3GdGef GdUfGYis; (3MhGOK GdeQhQs; (3GNWGQ GdegfIs; (3MhGOKs; (3YdGbGJ GdGeGfs