Matanock A, Lu X, Derado G, Cuellar VM, Juliao P, Alvarez M, Lopez B, Munoz F, Thornton A, Patel JC, Lopez G, Reyes L, Arvelo W, Blackstock AJ, Lindblade KA, Roy SL. Association of water quality with soil-transmitted helminthiasis and diarrhea in Nueva Santa Rosa, Guatemala, 2010. J Water Health. 2018 Oct;16(5):724-36. doi: 10.2166/wh.2018.207
Pattanayak SK, Poulos C, Yang JC, Patil SR, Wendland KJ. Of taps and toilets: quasi-experimental protocol for evaluating community-demand-driven projects. J Water Health. 2009 Sep 1;7(3):434-51.
Webster AJ, Saville C, Church BM, Gnanasakthy A, Moss R. Some effects of different rearing systems on health, cleanliness and injury in calves. Vet J. 1985 Sep;141(5):472-83.
Webster AJ, Saville C, Church BM, Gnanasakthy A, Moss R. The effect of different rearing systems on the development of calf behaviour. Vet J. 1985 May;141(3):249-64.