Somasekhara Reddy1, M. et al. 2019. Investigations on Natural Surfactant obtained from Soap-Nuts through Spectrophotometric Interactions with Congo Red and Comparison with Commercial Surfactants. Asian Journal of Chemistry. 31, 4 (Feb. 2019), 907–916. DOI:https://doi.org/10.14233/ajchem.2019.21849.