Schaum's Outline of Trigonometry, 5th Edition
2012
McGraw-Hill's Conquering the New GRE Math
2011
Schaum's Outline of Trigonometry, Sixth Edition
2017
Schaum's Outline of College Algebra, Fifth Edition
2018
McGraw-Hills Conquering the GMAT Math and Integrated Reasoning, 2nd Edition
2011
McGraw-Hill Education Conquering GRE Math, Third Edition
2016