G. M. Idroes, S. Suhendrayatna, K. Khairan, E. Suhartono, R. Prasetio, and M. Riza, “Ensuring Accuracy: Critical Validation Techniques in Geochemical Analysis for Sustainable Geothermal Energy Development”, Leuser J. Environ. Stud., vol. 2, no. 1, pp. 19–29, Apr. 2024.