Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yu Hang,A LITERATURE REVIEW ON THE STUDENTS OF PSYCHOLOGICAL PRESSURE OF POSTGRADUATES,Asian journal of social sciences & humanities,21868484,Chikusei : Leena and Luna International,2016-02,5,1,23-28,https://cir.nii.ac.jp/crid/1524232505716932224,