There are no specific readings that are required for the Final Exam.
There are six boxes of assigned readings that appear on your syllabus after the midterm. Of these readings any of the articles in the first three boxes are fair game for extra credit questions. The readings in the second three boxes (ones that I have specified as optional when posting onto ThinkWave) will not be used for extra credit questions.
If you have any questions about what I mean, please email me!