(3bUU YdejI(B:(3GUObGA GdQHjY(B-(3RgQI GdHQSje(B-(3aj GdGUWHd(B-(3LHGQIGdZGHI(B-(3Ge SfO hGe gfO(B-(3GdUOjbJGf(B-(3eNGWQGJ Ge eGRf (B/ s - (3cGed cjdGfis ((3GdbGgQI (B: s (3OGQ GdeYGQa , s, 1992)
Keywords: (3GdGWaGds; (3GdbUUs; (3bUU GdGWaGds; (3GdbUU GdYdejIs