1. Hydroponics, aeroponic and aquaponic as compared with conventional farming;AlShrouf;Am. Sci. Res, J. Eng. Technol. Sci.,2017
2. Carbon dioxide emission in thrace region and neighboring countries as a result of aerobic stabilization of urban treatment sludges;Aral;Sigma J. Eng. Nat. Sci.,2020
3. Oxygen effects in anaerobic digestion – a review;Botheju;Open Waste Manag. J.,2011
4. Nitrogen cycle;Cabello,2009
5. Bacterial dynamics in steady-state biofilters: beyond functional stability;Cabrol;FEMS Microbiol. Ecol.,2012