it is important to quote the original sources if you are using other people's ideas. Please read the handbook on plagiarism or the following guides for details:
Endnote is a bibliographical management software helps to organize and cite references. With Endnote, you may search and retrieve relevant references, insert in-text citations, and build a bibliography in one-go.
Turnitin offers similarity check on students' work for proper citation or potential plagiarism.