(3YGde GdeYdheGJ hGdecJHGJ hGdfTQ (B/s - (3GdLeYjI GdeUQjI ddeYdheGJ hGdecJHGJs ((3GdbGgQI (B: s (3OGQ GdTQhb ,s, 2000)
(3cJGH OhQi fUa Sfhi(B. (3GdeLdO GdGhd (B-- (3GdYOO GdKGfis
Keywords: (3GdecJHGJ, Yde s; (3GdeYdheGJ, Ydes; (3GdecJHGJs -- (3JfXje hGOGQIs