Sriyono, Murdohardono, D. and Suparno 2019. Pengujian Nilai Keasaman (pH) Air Tailing PT. Freeport Indonesia pada Mile Pos 39 Sungai Otomona Timika Mimika Papua. Jurnal Nasional Pengelolaan Energi MigasZoom. 1, 2 (Nov. 2019), 1–8. DOI:https://doi.org/10.37525/mz/2019-2/221.