Alamsyah M. Juwono, Susilo, A., Aprilia, F., Yudianto, D., Dardiri, A. A. and Amellia, R. (2023) “THE IMPACTS OF MT. SEMERU VOLCANIC ASH ON THE NEARBY AGRICULTURAL LAND FERTILITY: A CASE STUDY OF APPLICATION OF BORE-HOLE AND GEOELECTRIC METHODS”, GEOMATE Journal, 25(111), pp. 57–65. Available at: https://geomatejournal.com/geomate/article/view/3953 (Accessed: 5 March 2026).