(3GHf GdfajS (B: (3GdWHjH GdYQHjs - (3bWGjI(B. (3SdjeGfs ((3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQs (3HjQhJs, 1984)
Keywords: (3GdWHs; (3JQGLes