(3GdMdbI GdHMKjI(B: (3GdQYGjI GdfgGQjI dWad eG bHd GdeOQSI ai GdeLJeY(B((3efXhQ LOjO(B)3.2 (3jhdjh(B1991 (3GdbGgQI (B/ s - (3GdeLdS GdYQHi ddWahdI hGdJfejIs; (3eYgO GdJfejI GdGOGQjI HGdLGeYIs; (3eQcR GdeSGfOI GdOhdi(B- (3eDSSI gGs ([S.N] : (3GdeLdS GdYQHi ddWahdI hGdJfejI , s, 1991)
Keywords: (3GdeLJeYs; (3GdGWaGds; (3QYGjI GdWads; (3GdYfGjI GdUMjIs