1. Biomethanation of Palm Oil Mill Effluent (POME) by Membrane Anaerobic System (MAS) using POME as a Substrate;Abdurahman;World Acad. Sci. Eng. Technol. Int. J. Chem. Mol. Nucl. Mater. Metall. Eng.,2011
2. Comparative evaluation of biogas production from poultry droppings, cow dung and lemon grass;Alfa;Bioresour. Technol.,2014
3. Digestion of aquatic flora and quinoa with manures from Bolivian Altiplano;Alvarez;Waste Manag.,2008
4. Standard Test Method for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water, D 1252-95;American Society for Testing and Material,1995
5. Operating conditions of biogas fermentation process;Anon,1989