Perdana, T.A., Purusa, N.A., Kurniawan, R. and Suryawijaya, T.W.E. 2025. Retraction Note: E-Blue: Implementation of an Integrated Blue Economy Ecosystem to Increase Coastal MSMEs Competitiveness (Journal of Indonesian Economy and Business, Vol. 40, No. 2, May, 2025, 10.22146/jieb.v40i2.10994). Journal of Indonesian Economy and Business. 40, 3 (Sep. 2025). DOI:https://doi.org/10.22146/jieb.v40i3.24674.