Walker, CL; Rudan, I; Liu, L; Nair, H; Theodoratou, E; Bhutta, ZA; O'Brien, KL; Campbell, H; Black, RE (20 Nisan 2013). "Global burden of childhood pneumonia and diarrhoea". Lancet. 381 (9875). ss. 1405-16. doi:10.1016/s0140-6736(13)60222-6. PMID23582727.
Graham, JP; Polizzotto, ML (Mayıs 2013). "Pit latrines and their impacts on groundwater quality: a systematic review". Environmental health perspectives. 121 (5). ss. 521-30. doi:10.1289/ehp.1206028. PMID23518813.
Walker, CL; Rudan, I; Liu, L; Nair, H; Theodoratou, E; Bhutta, ZA; O'Brien, KL; Campbell, H; Black, RE (20 Nisan 2013). "Global burden of childhood pneumonia and diarrhoea". Lancet. 381 (9875). ss. 1405-16. doi:10.1016/s0140-6736(13)60222-6. PMID23582727.
Graham, JP; Polizzotto, ML (Mayıs 2013). "Pit latrines and their impacts on groundwater quality: a systematic review". Environmental health perspectives. 121 (5). ss. 521-30. doi:10.1289/ehp.1206028. PMID23518813.
sandec.ch
Tilley, E., Ulrich, L., Lüthi, C., Reymond, Ph. and Zurbrügg, C. (2014). Compendium of Sanitation Systems and Technologies (2 bas.). Dübendorf, Switzerland: Swiss Federal Institute of Aquatic Science and Technology (Eawag). ISBN9783906484570. 28 Ağustos 2021 tarihinde kaynağından arşivlendi. Erişim tarihi: 12 Temmuz 2015.KB1 bakım: Birden fazla ad: yazar listesi (link)
Tilley, E., Ulrich, L., Lüthi, C., Reymond, Ph. and Zurbrügg, C. (2014). Compendium of Sanitation Systems and Technologies (2 bas.). Dübendorf, Switzerland: Swiss Federal Institute of Aquatic Science and Technology (Eawag). ISBN9783906484570. 28 Ağustos 2021 tarihinde kaynağından arşivlendi. Erişim tarihi: 12 Temmuz 2015.KB1 bakım: Birden fazla ad: yazar listesi (link)