“Studi Unsur Tanah Jarang REE di Bagian Barat Bukit Sambung Giri Kecamatan Merawang Kabupaten Bangka: The Study of Rare Earth Elements REE in West Part Sambung Giri Hill Merawang District Bangka Regency”, PROMINE, vol. 6, no. 1, pp. 41–46, Nov. 2018, doi: 10.33019/promine.v6i1.717.