(3JLQje acQI GdJYSa chSjdI dMeGjI GdeLfj Ydjg aj GSJYeGd GdMb (B: s (3OQGSI ebGQfI HGdacQ GdLfGFj GdESdGej (B/ s - (3CMeO, gdGdj YHO GddGgs ((3GdbGgQI (B: s (3OGQ GdfgVI GdYQHjI,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
(3HHdjhLQGajI (B: (3UaMI (B267-285.s
Keywords: (3fXQjI GdMb s; (3bGfhf GdELQGAGJ GdLfGFjI s -- (3eUQs; (3fXQjI GdJYSa (B((3bGfhf(B) s -- (3eUQs; (3GdbGfhf GdLfGFj s -- (3eUQs