(3chdheHGs - (3ejQjejg(B. (3HQhSHQs ((3OGQ GdTeGd ddWHGYI hGdfTQ hGdJhRjYs (3WQGHdSs, 1983)
(3JQLeI fGUQ YcGQjs
Keywords: (3bUU s; (3bUU eJQLeIs