(3eLehYI bQGQGJ GdeLdS GdGYdi (B:s (3GdeGOI GdLfGFjI (B1966- 1986 /s - (3hRGQI GdYOd GdeYgO GdhWfi ddOQGSGJ GdbVGFjI GdeedcI GdeZQHjIs ((3GdeZQH (B:s (3efThQGJ LeYjI JfejI GdHMhK hGdOQGSGJ GdbVGFjI,s, 1987)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdLfGFjs; (3bGfhf GdELQGAGJ GdLfGFjIs -- (3GdeZQHs