 | of 30–80%. The effectiveness of the SODIS was first discovered by Aftim Acra, of the American University of Beirut in the early 1980s. Follow-up was conducted... 35 KB (4,060 words) - 17:25, 7 September 2023 |
| of 30–80%. The effectiveness of the SODIS was first discovered by Aftim Acra, of the American University of Beirut in the early 1980s. Follow-up was conducted... 35 KB (4,060 words) - 17:25, 7 September 2023 |