(3SjGSI GdGSJYeGQ h GdUgjhfjI JLGg adSWjf aj GdfUa GdGhd ef GdbQf GdYTQjf (B/s - (3MSf, UHQj GdNhdjs ((3eUQ (B:s (3OGQ GdeYGQa ,s, 1973)
Keywords: (3GdUgjhfjI s; (3adSWjfs; (3SjGSI GdGSJYeGQ s