(3Cda cdeI eNJGQI (B/s - (3Ydj Hf CHj WGdH Hf YHO GdeWdH GdgGTej,s 23 (3bHd GdgLQI(B-40 (3gLQjs ((3HjQhJ (B:s (3OGQ GdCfOdS,s, 1980)
(3jTJed GdcJGH Ydi eNJGQGJ ef GdMce GdJj LGAJ aj fgL GdHdGZI dCeQ GdeDefjf Ydj Hf CHj WGdH QVj Gddg Yfg(B.s
Keywords: (3GdfKQ GdYQHjs -- (3YUQ UOQ GdESdGes