(3ebheGJ GdGbJUGO GdESdGei (B/s - (3YHOGdSejY GdeUQis ((3GdbGgQI (B:s (3ecJHI hgHI,s, 1990)
(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdGbJUGO GdESdGeis