(3YHO GdQMef GdchGcHj (B: s (3GdeUdM GdYQHj h YGde GdELJeGY (B/ s - (3YfGjJ, QGLjs ((3HjQhJ (B:s (3GdeDSSI GdYQHjI ddOQGSGJ h GdfTQ,s, 1978)
Keywords: (3GdJQGLes