http://www.zhangqiaokeyan.com/academic-journal-cn_journal-hubei-university-philosophy-social-science_thesis/0201233912290.html
掌桥科研
全网免费
http://search.cnki.net/down/default.aspx?filename=HDZS201804016&dbcode=CJFD&year=2018&dflag=pdfdown
search.cnki.net
全网免费
http://wenku.baidu.com/view/3028a419961ea76e58fafab069dc5022abea46e3
百度文库
全网免费