2. Go to the electronic library of the school and find the information base of NPC plagiarism materials. At the same time, there are many available information databases, such as VIP and Tongfang. See if your school can buy his account. Enter the key words and the article will come out. Then follow the first step.
PS: Keyword retrieval. Besides selecting keywords, you can also try content, abstract and subject retrieval. This is comprehensive.