2020. KajianTeknis Pengaruh Panjang Pukulan Terhadap Recovery Pencucian Bijih Timah Menggunakan Alat Pan American Jig Skala Laboratorium Jurusan Teknik Pertambangan Universitas Bangka Belitung: Technical Study OnTheInfluence Of Stroke For Recovery Tin Ore Washing By Pan American Jig Laboratory Scale Of Mining Engineering Department Bangka Belitung University. MINERAL. 3, 1 (Jan. 2020), 1–7. DOI:https://doi.org/10.33019/mineral.v3i1.1568.