1. Resource flows: the material basis of industrial economies;Adriaanse,1997
2. Enerji;Apaydin,1998
3. Avcioglu, R., Acikgoz, E., Soya, H., Tan, A., 2000. Yem Bitkileri Uretimi. 5. Türkiye Ziraat Mühendisligi Teknik Kongresi. TMMOB Ziraat Mühendisleri Odasi Yayini. Ankara.
4. The metabolism of the anthroposphere;Baccini,1991
5. BMLFUW, 2002a. Grüner Bericht. Austrian Federal Ministry of Agriculture and Forestry, Environment and Water Management.