(3GdfbO GdSjfeGFi ai GdUMGaI GdeUQjIs (3fTGJg h JWhQg (B/s - (3Ydi TdTs ((3GdbGgQg (B:s (3GdgjFg GdeUQjg GdYGeg ddcJGH(B,s, 1986)
Keywords: (3GdfbO GdSjfeGFi(B- (3GdUMGag GdeUQjg(B.s