Joshi, S.P., A.S. Mahakalkar, and K.K. Munshi. 2010. “Surfactant Induced Eriochrome Cyanine R-Metal Ion Interactions: Complexation and Analytical Studies”. Asian Journal of Chemistry 7 (1):168-80. https://asianpubs.org/index.php/ajchem/article/view/24241.