(3GdEfJQHhd hedGMbI GdeLQejf (B/s - (3GdQhHj, SQGL GdOjf eMeOs ((3GdbGgQI (B:s (3GdOGQ GdeUQjI GddHfGfjI,s, 1998)
(3HHdjhLQGajI (B: (3UaMI (B252-260.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOhdj GdLfGFjs; (3GdLQjeI hGdeLQehfs