(3ehShYI GdehQO GdYQHjI (B: s (3OGFQI eYGQa ejSQI ebJHSI Yf ehShYI GdehQO (B/ s - (3GdHYdHcj, efjQs; (3GdHYHdcj, QeRjs ((3HjQhJ (B:s (3OGQ GdYde ddedGjjf,s, 1990)
Keywords: (3GdehShYGJs; (3GdeYdheGJs