<https://fr.coursera.org/lecture/water-part-2/video-4-1-information-treatment-case-1-in-house-water-quality-testing-LUDcN#lecture>
<http://schema.org/author>
_:ne7f20bdcd036492abd41eee3a6e1fa23xb0
<https://fr.coursera.org/lecture/water-part-2/video-4-1-information-treatment-case-1-in-house-water-quality-testing-LUDcN>