(3OhdI GdEeGQGJ GdYQHjI GdeJMOI (B:s (3OQGSI aj GdLZQGajG GdSjGSjI (B/s - (3GdYLjdj, eMeO UGdM QHjYs ((3CHh XHj (B:s (3eQcR GdEeGQGJ ddOQGSGJ hGdHMhK GdGSJQGJjLjI,s, 2000)
(3HHdjhLQGajI (B: (3U(B. 61-68.s
Keywords: (3GdLZQGajG GdSjGSjIs -- (3GdEeGQGJ GdYQHjI GdeJMOIs; (3GdEeGQGJ GdYQHjI GdeJMOIs -- (3MOhOs