(3bVjI adSWjf (B/s - (3jhSa, jhSas ((3HjQhJ (B:s (3GdeDSSI GdYQHjI ddOQGSGJ h GdfTQ ,s, 1980)
Keywords: (3GdSjfeG GdYQHjI s; (3GdUQGY GdYQHj GdUgjhfjs; (3bVjI adSWjf s