(3GdGSeGA GdLZQGajI aj GdCQOf h adSWjf (B/ s - (3YfHJGhj, hUajs; (3fbhdG, bSWfOjs; (3OQg, YHO GdHGQjs ((3YeGf (B:s (3GddLfg GdGQOfjg ddJYQjH,s, 1970)
Keywords: (3GdCSeGA GdLZQGajgs; (3eYGLe GdHdOGfs