((3GdSHhQI (B((3dhM GdWHGTjQs - (3HTjQ YHO GdQMje GdcdhHs; (3SYhO SYGOg GdLdGOs ((3HjQhJs (3OGQ GdYde ddedGjjfs, 1972)
Keywords: (3GdJQHjI hGdJYdje (B-- (3GdJQHjI HGdhSGFd GdSeYjI hGdHUQjIs; (3GdJQHjI HGdhSGFd GdSeYjI hGdHUQjIs