اقتصاد -
The development of real needs and demand depending on influencing factors in Germany from 1945-1986 - جامعة لايبزك -
المانيا الاتحادية -
دكتوراه -
1992
- Published Research -
No research
- Authored Books -
still not published .Environmental economics. some chapters - 2019
still not published .Supply chain management, some chapters - 2018