(3VeGfGJ Mbhb GdEfSGf aj eQMdI LeY GdESJOdGdGJ (B/s - (3GdUHMj, YjO Hf YhGO Hf ONjd Gddg(B.s; (3GdUjaj, YHO GdaJGM eUWajs (1989)
(3HQfGeL ecGaMI GdLQjeI(B.s
(3CWQhMI (B((3eGLSJjQ(B)--(3LGeYI fGja GdYQHjI ddYdhe GdCefjI, cdjI GdOQGSGJ GdYdjG, bSe GdYdhe GdEOGQjI, (B.s
(3HHdjhLQGajI (B: (3U(B. 95-99.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3bGfhf GdELQGAGJ GdLfGFjIs -- (3CWQhMGJs; (3GdJMbjb GdLfGFjs -- (3CWQhMGJs; (3QSGdI LGeYjI (B((3eGLSJjQ(B)s