(3GdhLjR aj bGfhf GdGLQGAGJ GdLfGFjI GdeUQj(B.s (3GdLRA GdChd,s (3GdOYhi GdLfGFjI(B-(3LeY GdGSJOdGdGJ(B-(3GdJMbjb hGdJUQa GdfgGFj ajg (B/s - (3UObj, YHO GdQMjes ((3GdbGgQI (B: s (3OGQ GdeYGQa,s, 1986)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
Keywords: (3bGfhf GdELQGAGJ GdLfGFjIs -- (3eUQs; (3GdbGfhf GdLfGFjs -- (3eUQs