(3GdYbd hGdaYd Hjf GdZRGdj hGHf QTO (B: s ((3YdGbI Gddg JYGdi HGdYde hHGdEfSGf(B) / s - (3GdNdGjdI, Cjefs; (3GdHOhQ, SdeGfs ((3YeGf (B: s (3GdeDda, s, 2012)
Keywords: (3GdadSaI GdGSdGejI(B.s; (3adSaI GdZRGdj(B.s