I believe this was the one I used: https://www.amazon.com/PTCB-Exam-Study-Guide-2020-2021/dp/1635306574/ref=pd_rhf_ee_p_img_2?_encoding=UTF8&psc=1&refRID=836FAGNEWDNS8411NX1R59
Combined with the PTCB app (I subscribed for about a month, if I recall correctly) and various online sources. I tried to cover all my bases and study math. Use as... (More)
Answer
PTCE Preparation
