(3UMM CNWGAc (B[(3aj GdYbGFO hGdYHGOGJ(B] /s - (3RZOGf, eMeO Hf CMeO Hf eMeO,s 820-881 (3g`(B.s ((3GdbGgQI (B:s (3OGQ GHf MRe ddWHGYI hGdfTQ hGdJhRjY,s, 2012)
Keywords: (3Yde GdcdGes; (3GdYHGOGJ (B((3abg ESdGej(B)s