Rufener, S., Mäusezahl, D., Mosler, H.-J., & Weingartner, R. (2010). Quality of Drinking-water at Source and Point-of-consumption - Drinking Cup As a High Potential Recontamination Risk: A Field Study in Bolivia. Journal of Health, Population and Nutrition, 28(1), 34–41. https://doi.org/10.3329/jhpn.v28i1.4521