CLEP® General Exams Book + Online, 9th Ed.Stu Schwartz, Laurie Callihan Ph.D., Scott Dittloff PhD, Editors of REA · First published 2018Open the Tome
GED® Total Solution, For the 2021 GED® Test, 2nd EditionLaurie Callihan Ph.D., Stephen Reiss, Lisa Mullins, Stacey A. Kiggins, Rubianna Porter Ed.D. · First published 2017Open the Tome
CLEP® Natural Sciences Book + OnllineLaurie Ann Callihan, David Callihan · First published 2016Open the Tome
CLEP Biology 3rd Edition WOnline Practice Tests CLEPLaurie Callihan · First published 2013Open the Tome
CLEP Natural Sciences Book + OnlineLaurie Ann Callihan, David Callihan · First published 2013Open the Tome
GEDTest, REA's Total Solution For the 2014 GED Test (GED Test Preparation)Laurie Callihan, Stephen Reiss, Lisa Mullins, Stacey A. Kiggins · First published 2013Open the Tome
GMAT Strategy SmartResearch & Education Association Editors, Laurie Callihan · First published 2012Open the Tome
AP biologyLaurie Ann Callihan, James M. Buckley, Joyce A. Blinn, Shira Rohde, Jay M. Templin · First published 2004Open the Tome
The best test preparation for the AP biology examLaurie Ann Callihan, James M. Buckley, Joyce A. Blinn, Shira Rohde, Jay M. Templin · First published 2006Open the Tome
The best test preparation for the CLEP, College-Level Examination ProgramLaurie Callihan · First published 2005Open the Tome
CLEP Biology (REA) - The Best Test Prep for the CLEP ExamLaurie Ann Callihan · First published 2004Open the Tome
The guidance manual for the Christian home schoolDavid Callihan, Laurie Callihan · First published 2000Open the Tome
