| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2003 | 978-1-897711-08-8 | Kanagaratnam Ganesha Nathan | Central Heating Maintenance and Repairs: Practical Manual |
| 2008 | 978-1-897711-12-5 | K G Nathan | How To Fault Find and Repair Central Heating |
| 2003 | 978-1-897711-16-3 | K.G. Nathan | Central Heating Combination Boiler Repairs Fast and Easy: Professional's Pocket Handbook |