Mongkol Damrongsri. 1980. Tapioca wastewater treatment by contact stabilization process. Department of Sanitary Engineering, Chulalongkorn University;
Mongkol Damrongsri. (1980) Tapioca wastewater treatment by contact stabilization process . Chulalongkorn University/Bangkok.
Mongkol Damrongsri. Tapioca wastewater treatment by contact stabilization process. . Bangkok:Chulalongkorn University, 1980.
Mongkol Damrongsri. (1980) Tapioca wastewater treatment by contact stabilization process . Chulalongkorn University/Bangkok.