Researches on the legal system concerning social securities for the disabled 并列题名：Researches on the legal system concerning social securities for the disabled Research on the legal system of rural social security Research of the legal system concerning goverment procurement of public services research on the social alienation of the disabled Research on the legal system of industrial regulation for three—network convergence 并列题名：Research of the legal system concerning goverment procurement of public services 并列题名：Research on the legal system of rural social security Research on the social security for the elderly and the disabled Study on the legal system of private securities offerings