(3VhGHW JSHjH GdCMcGe GdLfGFjI hChGeQ GdJUQa aj GdJMbjb eY JMdjd ehbagG ef GdELQGAGJ hGdOahY hef QbGHI GdfbV YdjgG (B/s - (3YHjO, QAha(B.s ([(3GdbGgQI(B] :s (3OGQ GdacQ GdYQHj,s, 1986)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdCMcGe GdLfGFjIs -- (3eUQs; (3GdSHHjI (B((3bGfhf LfGFj(B)s -- (3eUQs; (3GdJMbjb GdLfGFjs -- (3eUQs; (3bGfhf GdELQGAGJ GdLfGFjIs -- (3eUQs