Das, A. 2023. Identification of Surface Water Contamination Zones and its Sources on Mahanadi River, Odisha Using Entropy-Based WQI and MCDM Techniques. Engineering Research Transcripts. 4, (Oct. 2023), 67–92. DOI:https://doi.org/10.55084/grinrey/ERT/978-81-964105-1-3_5.