Nanja Hummelink และ Patiroop Pholchan. (2016) Transforming the infectious septage into biogas by co-digestion process. Chulalongkorn University:ม.ป.ท.Nanja Hummelink และ Patiroop Pholchan. 2016. Transforming the infectious septage into biogas by co-digestion process. ม.ป.ท.:Chulalongkorn University;Nanja Hummelink และ Patiroop Pholchan. Transforming the infectious septage into biogas by co-digestion process. ม.ป.ท.:Chulalongkorn University, 2016. Print.