Eitemau Tebyg: Black Book - Automobile Industry (February 1975)
- Black Book - Automobile Industry (February 1976)
- Black Book - Automobile Industry (February 1977)
- Black Book - Automobile Industry (February 1981)
- Black Book - Automobile Industry Trends (February 1982)
- Black Book - Automobile Industry Trends (February 1979)
- Black Book - Automobile Industry Trends (February 1984)