Sari, R. L., Sabila, F. ., Haeruddin, H., Saputri, E., Welayaturromadhona, W., Abror, H., … Triono, A. (2021). An Integrated Survey of the Geochemical Study at the Blawan-Ijen Area, East Java. Journal of Earth Energy Engineering, 10(2), 84–93. https://doi.org/10.25299/jeee.2021.5263