(3CUhd GdbGfhf GdOhdj GdNGU (B:s (3GdLfSjI, GdehWf, eQcR GdCLGfH, eGOI GdJfGRY (B/s - (3agej, eMeO ceGds ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B](3,s, 1985)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOhdj GdNGUs; (3GdCLGfH s -- (3hVY bGfhfj, bhGfjf, EdN(B. s; (3GdLfSjI (B((3bGfhf Ohdj(B)s; (3JfGRY GdbhGfjfs