. (3GdHjGf hGdJHjjfs - . (3GdLGMXs; (3YWhj, ahRj, eMbbs ((3HjQhJs (3GdTQcI GddHfGfjI ddcJGHs, 1968)
(3agQS aj BNQ GdcJGHs
Keywords: (3GdGOH GdYQHjs -- (3GdYUQ GdYHGSjs; (3GdLGMX, GHh YKeGf YeQh Hf HMQ, (B776-869s