(3YbhHGJ GdeNGdajf dfXGe GdEbGeI hCSGSgG aj GdJLQje hGdYbGH (B:s (3OQGSI JCUjdjI JWHjbjI aj GdeedcI GdYQHjI GdSYhOjI (B/s - (3GdQYhLj, YHO Gddg YHO GdQMefs; (3Hh SGb, eMeO GdeOfjs (2000)
(3cTGaGJ (B: (3U(B. 489-499.s
(3edGMb (B: (3U(B. 386-488.s
(3CWQhMI (B((3eGLSJjQ(B)--(3LGeYI fGja GdYQHjI ddYdhe GdCefjI, cdjI GdOQGSGJ GdYdjG, bSe GdYdhe GdEOGQjI, (B.s
(3HHdjhLQGajI (B: (3U(B. 500-511.s
Keywords: (3GdEbGeIs -- (3bhGfjf hJTQjYGJs -- (3GdSYhOjIs -- (3CWQhMGJs; (3QSGdI LGeYjI (B((3eGLSJjQ(B)s