Paraneeiswaran, A., Shukla, S.K., Sathyaseelan, V. and Rao, T.S. 2015. A spectrophotometric method for the determination Co-EDTA complexes. International Journal of Applied Sciences and Biotechnology. 3, 4 (Dec. 2015), 584–587. DOI:https://doi.org/10.3126/ijasbt.v3i4.13182.