(3ehShYI GdCWaGd h GdaJjGf GdejSQI (B/ s - (3MehO, dejS eMeOs; (3eMehO, GdjaGfGs; (3GdhGQOjfj, GdjGaGfG GdjGSs ((3HjQhJ (B:s (3OGQ GdYhOI,s, 1991)
Keywords: (3GdeYGQa GdYGeIs; (3GdCSFdI h GdCLhHIs; (3GdYdhes; (3fGTFhf cHGQ (B(15-18 (3SfI(B)s