PERBEDAAN VARIASI WAKTU KONTAK BUBBLE AERATOR TERHADAP PENURUNAN KADAR MANGAN (Mn) PADA AIR MINUM DI PT. X. EJTL [Internet]. 2024 Dec. 31 [cited 2026 Aug. 21];7(2):72-8. Available from: https://e-journal.ukri.ac.id/envirosan/article/view/3800