(3ehQO GdXeBf Edi eYQaI aVGFd GdbQBf (B/ s - (3EHf QLH, Rjf GdOjf CHh GdaQL YHO GdQMefs; (3GdHTQj, jSQi YHO GdZfjs ((3GdbGgQI (B:s (3ecJHI GdbQBf ddWHY h GdfTQ h GdJhRjY,s, 1990)
Keywords: (3GdbQBf GdcQjes; (3GdYdhe GdbQBfjIs