Manju N.J & Bright Singh, I. g. b. (2007). Development of nitrifying and photosynthetic sulfur bacteria based bioaugmentation systems for the bioremediation of ammonia and hydrogen sulphide in shrimp culture. School of Environmental Studies; Cusat.

Manju N.J and I.S; guided by Bright Singh. Development of Nitrifying and Photosynthetic Sulfur Bacteria Based Bioaugmentation Systems for the Bioremediation of Ammonia and Hydrogen Sulphide in Shrimp Culture. Kochi: School of Environmental Studies; Cusat, 2007.

Manju N.J and I.S; guided by Bright Singh. Development of Nitrifying and Photosynthetic Sulfur Bacteria Based Bioaugmentation Systems for the Bioremediation of Ammonia and Hydrogen Sulphide in Shrimp Culture. School of Environmental Studies; Cusat, 2007.