Students who use the exact words of the author are what

A student who uses the exact word of a writer are called copywriter.

Because A student or any person must not use the exact word of what is written by someone. It will mean copying of someone’s work. If you’re researching and looking for something to be use, just get the idea and rephrase each statement that a writer stated in his or her article. Copying someone’s work is like robbing his or her piece. It’s not bad to use their idea but to use even the exact words that he or she uses, that matters already.

When you use the exact words of the author, you are quoting the author's words. Quotes are used when the author's words are the most effective way to get an idea across.