Etiquette
Emily Post
How and When to Be Your Own Doctor
Isabelle A. Moser
Algebra and Trigonometry
Jay P. Abramson & Valeree Falduto & Rachael Gross (Mathematics teacher) & David Lippman & Rick Norwood & Melonie Rasmussen & Nicholas Belloit & Jean-Marie Magnier & Harold Whipple & Christina Fernandez
Mathematics - Free of Worries at the University II
Christian Posthoff; Brand Steinbach