(3GdZRGdj (B/ s - (3cGQGOhah, s; (3RYjJQ, YGOds ((3HjQhJ (B:s (3GdeDSSI GdYQHjI ddOQGSGJ,s, 1984)
Keywords: (3GdJQGLes; (3GdadGSaIs