“Pengaruh Laju Aliran Dan Ukuran Umpan Sisa Hasil Pengolahan Dengan Humprey Spiral Pada Skala Laboratorium Kabupaten Bangka: Influence Of Flow Rate And Residual Feed Size Results Of Processing With Humprey Spiral At The Laboratory Scale Bangka District”. 2022. MINERAL 7 (2): 37-43. https://doi.org/10.33019/mineral.v7i2.3512.