Pengujian Nilai Keasaman (pH) Air Tailing PT. Freeport Indonesia pada Mile Pos 39 Sungai Otomona Timika Mimika Papua. migaszoom [Internet]. 2019 Nov. 21 [cited 2026 Jun. 6];1(2):1-8. Available from: https://dev-ejurnal.ppsdmmigas.id/sp/index.php/migaszoom/article/view/221