(3GdSaf (B/ s - (3HfShf, HQjGfs; (3GdSHjdLj, MSf eMeOs ((3GdbGgQI (B:s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1986)
Keywords: (3GdSafs; (3GdSaf GdTQGYjI GdJWhQs; (3Saf GdTMf GdSaf GdJLGQjIs; (3fGTFhf cHGQ (B(15-18) (3SfIs