the study on social assistance in Peiping Research on social assistance legislation a study on social governance of Macau the study on social exclusion of PLWHA Research on social assistance Social assistance in Japan 故都济困：北平社会救助研究：1928-1937：the study on social assistance in Peiping：1928-1937 Study on the level of social assistant in China Study of social assistance in 70 years of new China a study on social governance