(3HGThGJ hShHQ HGThGJ (B: (3UhQI eUQ ai YUQjf (B/ s - (3MSjf eDfSs ((3GdbGgQI (B: s (3GdRgQGA ddGYdGe GdYQHi , s, 1984)
Keywords: (3KhQI (B23 (3jhdjh (B1952s; (3GdeMGce GdYScQjIs; (3GdSjGSjhf GdeUQjhfs; (3LeGd YHOGdfGUQs; (3eUQ (B- (3JGQjN (B- (3GdYUQ GdMOjKs