Perdana, T. A.; Purusa, N. A.; Kurniawan, R.; Suryawijaya, T. W. E. 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). J. Indones. econ. bus. (Online) 2025, 40.