(3GdeLdI GdLfGFjI GdbhejI(B.s (3GdeLdO GdKGdK hGdYTQhf (B- (3GdYOO GdKGdK (B/s ((3GdbGgQI (B:s (3GdeYgO Gdbhej ddHMhK GdLfGFjI,s, 1980)
(3GdCMOGK GdefMQahf aj eUQ (B((3HGdEfLdjRjI(B) /s (3GdOcJhQ YGOd UOjb(B.s
(3GdeLdO GdKGdK hGdYTQhf, GdYOO GdKGdK fhaeHQ (B1980s
Keywords: (3GdbGfhf GdLfGFjs -- (3OhQjGJs