In research, it is always emphasize that if you use someone else's idea or work and incorporate it in your own, you need to acknowledge the owner of the information. It is very necessary to cite the information sources you are using. The practice of submitting another person's work as one's own is called plagiarism and it is punishable by law. It is one way of stealing someone's intellectual work. The only way to be able to use someone else's work without fear of getting sued is to cite the owner or the source of information.
