(3GdfbO GdSjfeGFi ai GdUMGaI GdeUQjI fTGJI hJWhQI (B/ s - (3Ydi TdTs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1986)
Keywords: (3GdUMGaI GdYQHjIs; (3GdSjfeGs; (3JGQjN hfbOs