Rizkie, D., Ibrahim, E., & Setiawan, B. (2024). Karakterisasi Geokimia Overburden Tambang Batubara Dengan Metode NAPP Di Area PT. Bukit Asam, Tanjung Enim, Sumatera Selatan. Ranah Research : Journal of Multidisciplinary Research and Development, 6(5), 2218-2222. https://doi.org/10.38035/rrj.v6i5.1050