References

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Morgan, P.R., 1979. A new water pump: Spiral tube. Zimbabwe Rhodesia Sci. News, 13: 179-180.

Mortimer, G.H. and R. Annable, 1984. The coil tube theory and practice. J. Haydraulic Res., 22: 9-22.

Reimer, M., 1984. The Stream Powered-Coil Pump. Vol. 5, Waterlines Publisher, Minneapolis, Minnesota,.

Zepri, N.Z.B., 2016. Development of manually operated internally wound coiled tube pump using metallic drum as a coil supporting structure. Department of Mechanical Engineering, London, England.