Ginseng and other medicinal plants
AR Harding
A Handbook of Health
Woods Hutchinson
Precalculus
Jay P. Abramson & Valeree Falduto & Rachael Gross (Mathematics teacher) & David Lippman & Rick Norwood & Melonie Rasmussen & Nicholas Belloit & Jean-Marie Magnier & Harold Whipple & Christina Fernandez
Principles of Accounting, Volume 1
Mitchell Franklin (CPA) & Patty Graybeal & Dixon Cooper
Concepts of Biology
Samantha Fowler & Rebecca Roush & James Wise