Sartika, D., Gunarsih, D., Ahmad, L., Muhni, A., Rahmatillah, L. F., & Adhari, M. R. (2023). PROVENANCE ANALYSIS OF THE RAMPONG FORMATION SANDSTONE IN THE KETUKAH AREA, GAYO LUES, ACEH. Indonesian Physical Review, 7(1), 39–51. https://doi.org/10.29303/ipr.v7i1.261