(3cJGH GdTYQ Ch TQM GdCHjGJ GdeTcdI GdEYQGH (B/s - (3CHh Ydi GdaGQSi, GdMSf Hf CMeOs 901 or 902-987; (3GdWfGMi, eMehO eMeOs ((3GdbGgQI(B((3eUQ(B) : s (3ecJHI GdNGfLi,s, 1988)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI hagGQS(B.s
(3O(B. (3LGHQ YUahQ ;s
Keywords: (3GddZI GdYQHjI s -- (3GdfMhs; (3GdTYQ GdYQHis -- (3JGQjN hfbOs