(3eLehYI GdeHGOF GdJj bQQJgG GdeMceI GdOSJhQjI GdYdjG efP EfTGFgG MJi GdBf(B.s (3GdcJGH GdKGdK,s (3eSGFd GdCMhGd GdTNUjI (B/s - (3Sdje, QLH YHO GdMcjes ([(3ecGf GdfTQ ZjQ eMOO(B] :s [(3GdfGTQ ZjQ eMOO(B](3,s, 1997)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3eUQ(B.s -- (3GdeMceI GdOSJhQjI GdYdjGs -- (3bQGQGJs; (3GdCMhGd GdTNUjIs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdeMGce GdOSJhQjIs -- (3eUQs