(3MbjHI GdGQbGe hGdGTcGd hGdGdhGf (B/ s - (3YHOGdMejO Jhajbs; (3YGWa YHOGdQTjOs; (3eMeO GdUHGMis ([S.N] : (3SajQ , s, 1991)
Keywords: (3GdGWaGds; (3JYdjes; (3GdhSGFd GdJYdjejIs; (3GdGQbGe GdYQHjIs