(3fTQI JcfhdhLjG GdeYdheGJ h GdGJUGdGJ ddJfejI aj ZQH BSjG (B/ s ((3HjQhJ (B:s (3GdGSchG,s, 2010)
Keywords: (3JcfhdhLjG GdGJUGdGJs; (3JcfhdhLjG GdeYdheGJs; (3GdJfejI GdGbJUGOjI h GdGLJeGYjIs