A. P. ยท Pieper Adi
| title | ISBN-13 | year of publication |
|---|---|---|
| Easy Guide To Solar Electric Part I: 3ED | 978-0-9671891-3-0 | 2007 |
| The Easy Guide to Solar Electric | 978-0-9671891-0-9 | 1999 |
| The Easy Guide to Solar Electric Part II, Installation Manual | 978-0-9671891-2-3 | 2003 |
| The Easy Guide to Solar Electric, second edition | 978-0-9671891-1-6 | 2001 |