
References
^ 5 Steps to a 5 on the Advanced Placement Examinations: 5 Steps to a 5 AP Biology Flashcards by Mark Anestis (2011, Paperback) ISBN 9780071760706 (revised Jul 2019)^ Anestis, Mark (2014). 5 Steps to a 5 AP Biology Flashcards, McGraw-Hill. BiggerBooks. ISBN 9780071760706 (revised Feb 2024)
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