Review courses by themselves including the McKeever CRMA Study System are generally not sufficient to ensure exam success. This study system will certainly provide you with an approach to significantly improve your chances of passing.
Several references to additional material appear within the McKeever CRMA Study System.
The IIA web site lists a variety of study material to use to help you pass both the CRMA Exam and Part 1 of the CIA Exam.
Following is a listing from the The IIA website www.theiia.org of 19 references that you might also consider as additional study material for passing the CRMA Exam.