Du, Y.; Teoh, Y. J.; Ismail, N. A.; Abir, I. A.; Gebretsadik, H. T. Map-Derived Agreement Assessment of Landsat-9 OLI-2 for Island-Scale Lithological Discrimination in a Humid Tropical Setting from Langkawi Island, Malaysia. Int. J. Environ. Eng. Educ. 2026, 8, 264-259.