(3CQGZhf (B: (3aj ehGLgI GdYUQs - (3CHhefUhQ(B. (3aDGOs ((3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQs (3HjQhJs, 1982)
Keywords: (3BOGHs; (3fbO GdCOH GdYQHjs