(3Yde GdYbGH (B/ s - (3YHO Gddg, eMeO eYQha, s ((3HZOGO (B[(3GdYQGb(B] : s (3hRGQI GdJYdje GdYGdj hGdHMK GdYdej, LGeYI HZOGO (B990.s, 1990)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B137-148.s
Keywords: (3GdbGfhf GdLfGFj(B.s; (3GdYbhHGJ(B.s