(3JbGOe GdOYhi GdLfGFjI aj Gdabg GdESdGej hGdbGfhf GdhVYj (B/s - (3LGO, SGeM GdSjO CMeOs ((3GdbGgQI (B:s (3OGQ GdgOi ddWHGYI,s, 1984)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3bGfhf GdELQGAGJ GdLfGFjIs -- (3eUQs; (3GdOYhi GdeOfjIs -- (3eUQs; (3GdOYhi (B((3abg ESdGej(B)s