(3GddZI hGddhf (B/ s - (3YeQ, CMeO eNJGQs ((3GdUaGI (B((3GdchjJ(B) :s (3OGQ GdHMhK GdYdejI,s, 1982)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
(3O(B. (3LGHQ YUahQ ;s
Keywords: (3GddZI GdYQHjIs -- (3CdaGXs; (3GdCdhGfs