1. Aldin, A. (2010). The effect of particle size on hydrolysis and modeling of anaerobic digestion. Graduate Program in Engineering Science Thesis, Ontario, Canada
2. Standard methods for the examination of water and wastewater;APHA-AWWA-WPCF,1989
3. Dairy waste treatment with anaerobic stationary fixed film reactors;van den Berg,1992
4. Anaerobic treatment of dairy wastewater: a review;Burak;Process Biochemistry,2005
5. The effect of holdup and mixing on a stream of fluctuating composition;Danckwerts;Industrial Chemist,1951