(3GdLaQ hGdaJf hGTQGW GdSGYI (B: (3GdUZQi hGdhSWi (B/ s - (3Hf CHj WGdH, Ydjs; (3GdWjHj, YcGTI YHO GdefGfs ((3HjQhJ (B:s (3OGQ GdjhSa,s, 1999)
Keywords: (3Gdjhe GdGNQs; (3YdGeGJ GdSGYIs