Ge, X., Wang, H., Li, Z., Liu, S., Tong, X., Pu, J. and Dong, Q. (2020) “Study on the Influence of Toilet Siphon Pipe Shape on Flushing Performance”, Journal of Engineering and Technological Sciences, 52(6), pp. 779-797. doi: 10.5614/j.eng.technol.sci.2020.52.6.1.