| title | ISBN-13 | year of publication |
|---|---|---|
| 2000 Electronics Manufactures Directory | 978-99908-70-67-1 | 2000 |
| Chichewa 1 PB Malawi | 978-99908-70-56-5 | 2006 |
| Chichewa 2 PB Malawi | 978-99908-70-57-2 | 2006 |
| Chichewa 3 PB Malawi | 978-99908-70-58-9 | 2009 |
| Chichewa 3 Tg Malawi | 978-99908-70-65-7 | |
| Chichewa 4 PB Malawi | 978-99908-70-59-6 | 2009 |
| Chichewa 4 Tg Malawi | 978-99908-70-66-4 | 2009 |
| Chichewa 7 PB Malawi | 978-99908-70-62-6 | 2008 |
| Electric Circuits | 978-99908-70-61-9 | 2004 |
| Microworlds | 978-99908-70-64-0 | 2004 |
| Plant Growth and Development | 978-99908-70-60-2 | 2004 |