| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Biodiesel - Feedstocks and Processing Technologies | 978-953-307-713-0 (953-307-713-1)  | 2011 | Margarita Stoytcheva | 
| Biodiesel- Quality, Emissions and By-Products | 978-953-307-784-0 (953-307-784-0)  | 2011 | " |