Generally speaking, in the process of writing a paper, it is necessary to explain the viewpoints and arguments in the paper to the readers clearly. Sources and sources of supporting reference materials. In terms of expression, the sources and sources of cited materials can be listed in the form of appendix catalogue at the end of the article. For example, access to published literary works. Or data obtained through an internal index. Or authorization obtained through direct or indirect communication with the original author and author. , these will do. You can also open a separate paragraph at the end of the paper to explain the source and process of the cited materials.

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