(3GdbVGA GdOSJhQi ai eUQ(B: (3OQGSI JGUjdjI ebGQfI ddQbGHI Ydi OSJhQjI GdbhGfjf ai GdOhd GdeYGUQI eY JMdjd Mce GdeMceI GdOSJhQjI GdYdjG GdGNjQI ai eUQ (B/ s - (3YHOGdefYe eMahXs ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1991)
Keywords: (3eUQs; (3GdbGfhf GdOSJhQis