* Mara, D. D. (1985). The Design of Pour-Flush Latrines. UNDP Interregional Project INT/81/047, The World Bank and UNDP, Washington, D.C., US.
:Available at: [http://documents.worldbank.org/curated/en/home documents.worldbank.org/curated/en/home]
* Mara, DD. (1996). Low-Cost Urban Sanitation. Wiley, Chichester, UK. (Provides detailed drawings of Indian glass-fibre squat pan and trap with dimensions and critical design criteria. A description of how to modify a Pour Flush Toilet to a cistern Flush Toilet is included.)
* Roy, A. K., Chatterjee, P. K., Gupta, K. N., Khare, S. T., Rau, B. B. and Singh, R. S. (1984). Manual on the Design, Construction and Maintenance of Low-Cost Pour-Flush Waterseal Latrines in India. UNDP Interregional Project INT/81/047, The World Bank and UNDP, Washington, D.C., US. (Provides specifications for pour flush toilets and connections)
:Available at: [http://documents.worldbank.org/curated/en/home documents.worldbank.org/curated/en/home]
===Acknowledgements===
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