(3ecGQe GdCNdGb heYGdjgG (B/s - (3GdNQGFWj, eMeO Hf LYaQ Hf eMeO,s 240-327 (3gLQjs; (3MLGL, YHO Gddgs ((3GdbGgQI (B:s (3ecJHI GdSdGe GdYGdejI,s, 1980)
Keywords: (3GdCNdGb GdESdGejIs; (3GdBOGH GdESdGejIs