(3GdabI GdTQYj GdejSQ aj VhA GdcJGH hGdSfI (B: s (3SdSdI GdJabI aj GdOjf(B(5) / s ((3OeTb(B-(3HjQhJ (B: s (3OGQ GdbQBf GdcQje , s, 2000)
Keywords: (3Gdabg hGdCMcGe GdTQYjIs