(3fMh MeGjI LfGFjI CaVd dMjGI hfSH GdWad MOjK GdhdGOI (B/s - (3GdOcJhQ MSfj eMeO GdSjO GdLOYs ((3GdRbGRjb (B:s (3OGQ eMQe ddWHGYI GdMOjKI ,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3GdbGfhf GdLfGFjs