(3ghGeT Ydi OaJQ GdJfhjQ (B/s - (3YUahQ, LGHQs ((3GdbGgQI (B((3eUQ(B) :s (3GdgjFI GdYGeI dbUhQ GdKbGaI,s, 2000)
.
(3O(B. / (3LGHQ YUahQ ;s
Keywords: (3GdKbGaI GdYQHjIs; (3GdJYUH GdOjfis; (3eUQs -- (3GdGMhGd GdSjGSjIs