(3GdELQGAGJ GdLfGFjI ai GdJTQjY GddjHj (B/s (3GdLRA GdKGfi,s (3GdeMGceI hGdMce hGdYjhH GdELQGFjI (B- (3WQb GdWYf ai GdCMcGe (B/s - (3eCehf eMeO SdGeI(B.s ((3djHjG (B:s (3GdLGeYI GddjHjI cdjI GdMbhb,s, 1971)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdLfGFis; (3GdeMGceI GdLfGFjIs -- (3djHjGs