View the problem of plagiarism not as a war but as a game in which students are trying to figure out new rules in a game that they don't fully understand, and may bring different views from different cultural backgrounds. Not every culture shares the view of plagiarism as cheating that we do in western academia.
Availably at UNM elibrary via login.
Suggestions for helping students learn about and avoid plagiarism. Good suggestions in the comments, too.
Information session for instructors on using Turnitin