(3GdWHbGJ GdcHQi (B/ s - (3EHf SYO, eMeO Hf efHY GdHUQjs; (3YWG, eMeO YHO GdbGOQs ((3HjQhJ (B:s (3OGQ GdcJH GdYdejg,s, 1990)
Keywords: (3GdJQGLes; (3GdYQHs